Seed Germination Database

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Gardener's Supply Company

Annuals, Perennials and BulbsTrees and shrubs

Legend

  • Irr column: ^ stands for slow and irregular germination

  • Germ Days:  L stands for needs light and D stands for needs darkness

  • Sow Depth:  JC stands for just barely cover and S stands for scatter - don't cover


Annuals, Perennials and Bulbs  
Variety	     Type	Germ Days     Irr   Temp   Media	Sow Depth	Comments - Links

Abarema        GP        7-56               70-75  Peaty           1/4" 	To scarify, rub between emery paper.
Abelmoschus    HHA       15-30              75-80  Well drained    1/16" 	Soak 1 hr in lukewarm water before sowing.
Abutilon       HHSh      21-30             70-80  Peaty           JC
Acacia         HHSh      21                 70-80  Well drained    1/16"	See No. 13. Soak in warm water for 4 hours.
Acaena         HP        30-100            50-60  Well drained    1/4"
Acanthus       HP        21-25              50-55  Peaty           1/4".
Achillea       HP        30-100   L        60-65  Well drained    S		Reduce soil temperature at night.
Achimenes      GP        21-30              65-75  Well drained    S		See No. 5. Seed is very small.
Acnistus       HHSh      21-42              55-65  Well drained    1/16"
Aconitum       HP        5-270    L        55-60  Well drained    1/16"	See Nos. 6  14. Place in fridge for 6 wks.
Actaea         HP        30-365            55-60  Well drained    JC		See No. 14. (Pre-chill for 6-8 weeks).
Actinidia      HP        60-90             50     Well drained    1/8"		Male/Female flowers on separate plants.
Adansonia      GSh       21-365            70-80  Peaty           1/16"	Soak in hand hot water. See No. 13.
Adenanthera    GSh       30-90              70-75  Well drained    JC		See No. 13. Soak in hot water.
Adenium        GSh       7-14     L         65-70  Verywelldrained JC
Adenophora     HP        30-90             50-55  Well drained    S
Adonis         HA, HP    30-120            60-65  Well drained    JC
Aechmia        GP        7-90     L        60-70  Peaty           S		See No. 5.         
Aethionema     HP        30-90             60-65  Well drained    JC
Agapanthus     HHP       30-90              60-65  Well drained    JC
Agastache      HP        30-90              55     Well drained    1/16"
Agave          GP        30-90    L        55     Well drained    S
Ageratum       HHA       10-14    L         70-75  Well drained    S
Agrostemma     HA        14-21              55-65  Well drained    1/8"		Can be sown in situ
Alchemilla     HP        21-30              60-70  Well drained    1/8"
Allium         HBb       30-365   L         50     Well drained    JC		See No. 14. Place in fridge for 4 weeks.
Aloe           GP        30-180   L         70     Well drained    S
Alonsoa        HHA       14-21              60     Well drained    1/16"	Cover seed with silver sand.
Alpina         GP        30-90              70-75  Peaty           1/8"
Alstroemeria   HP        30-365            65-70  Peaty           1/16"	See No. 13. Soak in warm water, sow singly in pots.
Alyssum        HA        7-14     L         55-75  Peaty           S		Annuals can be sown in situ.
Amaranthus     HHA       10-15              70-75  Peaty           1/16"
Amaryllis      HHBb      21-70             65-75  Peaty           1/16"	Do not dry off in first yr after sowing.
Ammi           HHA       7-21               55-65  Well drained    1/16"
Ammobium       HHA       10-15              60     Well drained    1/16"
Anacampseros   GP        30-90    L        65-70  Well drained    S
Anacyclus      HP        30-60    L        55-60  Well drained    JC		See No. 14. (Pre-chill for 3 weeks.)
Anagallis      HHA       30-42              50-65  Well drained    1/8"
Anaphalis      HP        30-60              55-65  Well drained    JC
Anchusa        HA, HP    7-30               70     Well drained    1/16"	Can be sown in situ                 
Androsace      HP        30-365            50-55  Well drained    S		See No. 16.        
Anemone        HP        28-180            65-70  Well drained    JC		See No. 6.
Anemonopsis    HP        30-18O   L        55-60  Well drained    S		Sow in lime free compost.
Anigozanthus   GP        30-90    L         60-65  Peaty           S		See No. 5.  
Anoda          HHA       14-21              55-65  Well drained    1/4"		Can be sown in situ
Antennaria     HP        30-69              55-60  Well drained    JC		Just cover with silver sand.
Anthemis       HP        0-14               70     Well drained    S
Anthericum     HP        30-90              50     Well drained    1/8"
Anthriscus     HP, HB    14-21              55-65  Well drained    1/4"		Usually sown in situ
Anthyllis      HP        30-60              50     Well drained    1/8"		See No. 13. Soak in warm water overnight.
Antigonon      GP        21-30              65-70  Well drained    JC
Antirrhinum    HHA       10-21    L         65-75  Peaty           S
Aphyllanthes   HP        21-56             55-60  Peaty           JC
Aquilegia      HP        30-90    L        65-75  Well drained    S		See No. 6 or 14. Pre-chill 3 wks. Keep below 70F
Arabis         HP        20-25    L         70     Well drained    S		Can be sown in situ.
Arachis        GA        7-21               70-75  Peaty           1/4"		Sow, cover with plastic until germination.
Araujia        HHSh      90-180            75-80  Well drained    JC
Arctotis       HHA       21-35              60-70  Well drained    JC
Ardisia        GSh       90-180             75     Well drained    1/4"
Arenaria       HP        15-30              55-65  Well drained    S
Argemone       HA        14                 65-70  Well drained    1/8"		Can be sown in situ
Arisaema       HP        30-180   L        55-60  Well drained    JC
Aristea        GP        30-90             55-60  Well drained    JC
Aristolochia   GSh       30-90             75-85  Peaty           S		See No. 13. (Soak 48 hrs in hand hot water).
Armeria        HP        14-21              60-70  Well drained    JC		See No. 13. (6-8 hours in hand hot water).
Arnica         HP        25-30              55     Well drained    JC		Likes an acid sandy soil.
Artemisia      HP        30-60    L         60-65  Well drained    S
Arum           HP        30-l80            55-65  Peaty           1/8"
Aruncus        HP        30-90              55-65  Peaty           S
Asarina        HHP       14-21    L         65-70  Well drained    S
Asarum         HP        7-30               60-65  Well drained    1/16"	Sow as soon as possible.
Asclepias      GP, HP    30-90             50-75  Peaty           1/16"	See No. 14. (Pre-chill for 3-4 weeks).
Asparagus      GP        21-30              60-70  Peaty           1/4"		Soak then chip. See Nos. 12 and 13.
Asperula       HA        30-42    L         50     Well drained    1/16"	Sow in situ or No. 14. (Pre-chill 2 wks).
Asphodeline    HP        30                70-75  Well drained    JC
Aster          HHA       10-14              65-70  Well drained    1/16"	Pre-chill perennials 2 wks see No. 14.
Astilbe        HP        40-80              65     Peaty           S		See No. 5.         
Astrantia      HP        30-180   L        55-65  Well drained    S		See No. 14. (Pre-chill for 4 weeks).
Atriplex       HA        9-21               50-55  Well drained    1/16"	Can be sown in situ
Atropa         HP        21-30              50     Well drained    1/16"
Aubrieta       HP        14-21    L         65-75  Well drained    S		See No. 5.         

Baileya        HHP       7-30               60-65  Well drained    JC
Balsamorrhiza  HP        14-42              60-65  Well drained    1/16"
Banana (Musa)  GP        7-180             70-80  Peaty           1/2		See No. 2.         
Banksia        HHSh      30-90             65-70  Peaty           S		See No. 5.                 
Baptisia       HP        7-10               70-75  Well drained    1/4"		Soak then chip. See Nos. 13 and 12.
Basil          HHA       7-10               60-70  Well drained    1/16"	Can be sown situ   
Bauhinia       GSh       21-42              75-85  Peaty           1/4"		See No. 13. (Soak 48 hours in hand hot water).
Beaufortia     HHSh      14-60    L         55-65  Peaty           S		See No. 5.         
Beaumontia     GSh       7-30               70-75  Peaty           1/16"
Begonia        HHP       15-60    L        70-80  Peaty           S		See No. 5. Fibrous 70-75F, tuberous 65-70F.
Belamcanda     HP        14-60             60-86  Well drained			See No. 14. (Pre-chill for 7 days).
Bellis         HB        10-15    L         70     Peaty           1/16"	Reduce soil temperature at night.
Beloperone     GP        30-180   L        70-75  Peaty           S		See No. 5.         
Bergenia       HP        30-180            60-70  Peaty           S		See No. 14. (Pre-chill for 2 weeks).
Berlandiera    HHP       30-90    L         60-70  Well drained    S
Beta           HB        14-21              55-65  Well drained    1/4"		Usually sown in situ.
Bignonia       GP        30-90             60-70  Peaty           S
Billadiera     HHP       30-60              55     Sandy peat      JC
Billbergia     HHP       7-90     L         60-70  Peaty           S		See No. 5.         
Biscutella     HHA       14-21              55-65  Well drained    JC		Can be sown in situ.
Bixa           GT        30-180            75-80  Peaty
Blandfordia    HHP       30-90+            60-70  Sandy peat      JC
Bletilla       HHP       30-365   L        65-70  Peaty           S		See No. 5.         
Boea           GP        20-60    L        70-75  Peaty           S		See No. 5.         
Boronia        GSh       30-60    L         65-75  Peaty           S		See No. 5.         
Brachycombe    HHA       10-18              70     Well drained    JC
Brimeura       HBb       30-60             60-65  Sandy peat      JC
Bromeliads     GP        7-90     L        60-70  Peaty           S		See No. 5.         
Browellia      GP        14-21    L         75     Peaty           S		See No. 5.         
Brunfelsia     GP        30-90             70-80  Well drained    JC
Bulbinella     H/HHBb    30-90             55     Well drained    JC
Bupthalmum     HP        14-30    L         70-75  Well drained    S

Cacti          GP        5-180    L        75-80  Peaty           S		See No. 9.         
Caesalonia     HhSh      14-120            75-80  Well drained    1/4"		See No. 13. (Soak 48 hours in hand hot water).
Calandrinia    HHA       5-14               55-60  Well drained    1/8"		Can be sown in situ
Calceolaria    GB        14-21    L        65-75  Peaty           S		Outdoor varieties keep temp below 60F.
Calendula      HA        10-14    D         70     Any             1/4"		Sow in situ, or autumn for winter greenhouse
Calibanus      GP        30-120   L        70-80  Peaty           S
Calliopsis     HA        14                 60-65  Well drained    1/8"		Can be sown in situ
Callirhoe      HP        30-180+  L        50     Well drained    S		Can be sown in situ or a cold frame.
Callistemon    HHSh      14-60    L         55-65  Peaty           S		See No. 5.         
Caltha         HP        30-90             55-60  Peaty           1/16"	Keep compost slightly moist.
Camassia       HBb       30-180            55-60  Well drained    1/16"
Campanula      HP, HB    14-28    L         60-70  Peaty           S		See No. 5.         
Campsis        HHSh      30-90             70-75  Well drained    S		See No. 14. (Pre-chill for 2 months).
Canarina       GP        30-180            65-75  Well drained    JC
Candytuft      HA, HP    10-15              68-85  Well drained    1/4"		Can sow in situ. Perennials (60-65F) slow/irregular.
Canna          HHP       21-60             70-75  Peaty           1/4"		See Nos 12  13, chip and soak for 48 hours.
Capsicum       GA        21-30    L         70-75  Peaty           S                 
Cardiocrinum   HBb       90-730            50     Peaty           1/16"	See No. 6.         
Cardiospermum  HHA       21-30              65-70  Well drained    1/2"
Carica         GSh       30-120            75     Peaty           1/8"		See No. 13. (Soak for 40 hours).
Carlina        HP        30-60    L         55-60  Well drained    S
Carthamus      HA        12-18              55-65  Well drained    1/4"		Can be sown in situ
Cassia         GSh       7-90               70-75  Well drained    1/8"		See No. 12.        
Casuarina      GT        30-90              65     Well drained    JC
Catananche     HP        21-25              65-75  Well drained    1/16"
Catharanthus   GA/HHA    15-20    D         70-75  Peaty           1/8"
Celosia        GA        10-15    L         70-75  Well drained    JC     	Don't sow early - likes warmth.
Centaurea      HP, HA    7-14     D         60-70  Well drained    1/16"
Centranthus    HP        21-30              60-70  Well drained    JC		Can be sown in situ.
Cephalaria     HP        21-60              55-65  Well drained    1/4"		Can be sown in situ.
Cephalilitrum  HHA       14-21              65-75  Well drained    JC
Cerastium      HP        5-10               60     Well  drained   1/16"
Ceratotheca    HHA       8-14               70-75  Well drained    1/8"
Cerinthe       HHA       7-14               60-65  Well  drained   1/16"	Can be sown in situ
Cheiranthus    HB        14-21              65-75  Well  drained   1/8"		Sow in reserve bed, prick out to 6", plant in Oct.
Chelidonium    HP        30-365            55-65  Well drained    1/8"		See No. 16.        
Chelone        HP        14-42              55-65  Well drained    1/16"	Needs good drainage.
Chiastophyllum HP        30-60              55     Well drained    S		Seeds very small.  
Chionodoxa     HBb       30-90             55     Well drained    1/4"
Chlorogalum    HBb       30-90             55-80  Well drained    1/8"		See No. 6.         
Chrysanthemum  HA, HP    10-18              60-70  Peaty           1/8"		Sow annuals in situ. HPs reduce night temp
Cimicifuga     HP        30-365            55-60  Well drained    1/16"
Cineraria      GP        14-21    L        70     Well drained    JC
Cirrhopetalum  GP        30-180   L        65-70  Well drained    S
Cirsium        HP        15-18              70-75  Well drained    1/8"
Cissus         GSh       30-180            70-75  Well drained    JC
Cladanthus     HA        30-35              70-75  Well drained    JC
Clarkia        HA        21                   -    Well drained    1/4"		Best sown in situ, for sturdier plants.
Claytonia      HA        14-21              65-70  Well drained    1/8"
Clematis       HP        30-270+           70-75  Well drained    1/8"		See Nos. 6  16.   
Cleome         HHA       10+14    L         70-75  Well drained    S		See No. 14. (Pre-chill for 2 weeks).
Clerodendrum   GSh       21-60             70-75  Well drained    1/8"
Clianthus      GSh       14-42              65-70  Well drained    1/16"	See No. 13.        
Clintonia      HP        30-90              55-60  Sandy peat      JC		Keep compost always just moist.
Clitoria       GP        15-20              70-75  Well drained    1/16"	See Nos. 12 and 13. (Chip and soak 24 hrs).
Clivia         GP        7-21               80-85  Peaty           1/4"		Sow immediately. See No. 3.
Cobaea         HHA       21-30              70-75  Well drained    1/16"	Stick the seed vertically into the compost.
Coccoloba      GSh       10-21              65-70  Well drained    1/4"		See No. 13. (Soak for 24 hours).
Codonopsis     HP        7-42     L         60-70  Slighty acid    S
Coffea         GSh       42-56    L         75     Peaty           S		See No. 2. (Soak for 48 hours).                 
Colchicum      HBb       30-365            55-65  Peaty           1/8"		See No. 16.        
Coleus         HHP       10-20    L         65-75  Peaty           S		Indoors, warm with plenty of bright light.
Collinsia      HHA       14-21                -    Well drained    1/4"		Best sown in situ, thin out to 6'.
Collomia       HA        21                   -    Well drained    1/8"		Best sown in situ, thin out to 6".
Columnea       GP        30-120   L        72-75  Peaty           S
Commelina      HHP       30-37              70     Well drained    1/8"
Conophytum     GP        10-40    L        75-80  Well drained    S
Convallaria    HP        60-365+  L        50-60  Well drained    JC		See No. 16.        
Convolvulus    HA        5-14               70-80  Well drained    1/8"		Chip (12) or soak (13) the seeds.
Cordyline      GP        30-90              75-80  Peaty           1/16"	See No. 13. (Soak 10 mins in hand hot water).
Coreopsis      HP        20-25    L         55-70  Well drained    S		Annuals can be sown In situ
Correa         HHSh      30-90             65-72  Well drained    JC
Cortaderia     HP        14-21    L         60-75  Peaty           S		See No. 5.         
Corydalis      HP        30-60    L         50-60  Well drained    S
Cosmos         HHA       5-10               68-86  Well drained    1/8"		Can be sown in situ
Cotula         HHA       14-42              50     Well drained    1/16"
Crambe         HP        21-42                -    Well drained    1/2"		Best sown In situ. 
Craspedia      HHA       14-30              70-75  Peaty           1/8"		Can be sown in situ.
Crepis         HA        5-14               70-80  Wed drained     JC
Crocosmia      HP        30-90              55-60  Well drained    1/16"
Crocus         HBb       30-180            55-65  Well drained    1/8"
Crossandra     GP        25-30    L        75-80  Peaty           S		See No. 5.         
Crotalaria     GSh       21-30              65-75  Well drained    1/16"	See No. 13. (Soak for 2 hours)
Cryptostegia   GCI       30-90             65-75  Well drained    1/16"	See No. 13. (Soak for 2 hours)
Cunonia        GSh       30-60              70-75  Peaty           1/16"
Cuphea         HHP       8-10     L         70     Peaty           S
Cyananthus     HP        14-60    L         60-65  Peaty           S		See No. 5.         
Cycad          GP        30-90             70-75  Well drained			Half bury the seed lengthwise.
Cyclamen       GP        30-60    D        55-60  Peaty           1/4"		Keep moist and in total darkness.
Cyclamen       HP        30-18O   D        55-60  Peaty           1/4"		See No. 6.         
Cynara         HP        14-30              50-55  Well drained    1/8"		Can be sown In situ.
Cynoglossum    HA        5-10     D         65-75  Peaty           1/4"
Cyperus        HHP       25-30              70-75  Peaty           JC		Keep the compost slightly moist.
Cyphomandra    GP        20-25              70-75  Peaty           1/16"
Cyphostemma    GP        30-60             70     Well drained    1/4"		See No. 13. (Soak for 2 hours).
Cypripedium    HP        30-365   L        65-70  Peaty           S		See No. 5. Difficult outside the laboratory.
Cyrtanthus     GP        30-90             55-65  Peaty           S		Keep the compost slightly moist

Dahlia         HHA       5-20               65-70  Peaty           1/16"  	Do not let the compost dry out.
Darlingtonia   HP        30-90             75-80  Peaty           S      	Do not let the compost dry out. See No. 5.
Datura         HHSH      21-42              55-65  Well drained    1/8"
Delonix        GT        30-90             75-85  Peaty           1/16"	See No. 13. (Soak for 24 hours).
Delosperma     HHP       10-40    L         75     Well drained    S
Delphinium     HP        14-28    D        50-55  Peaty           1/16"	High temps cause dormancy. See No. 14 Pre-chill 2 wks.
Desmodium      GA        30-90              75-80  well drained    1/16"
Dianella       H/HHP     30-90              65-70  Well drained    1/16"
Dianthus       HHA, HP   14-21              60-70  Well drained    JC
Diascia        HHA       14-30              60     Well drained    JC
Dicentra       HP        30-180   L        55-60  Well drained    JC		See No. 14. (Pre-chill for 6 weeks).
Dichorisandra  GP        7-60               70-75  Peaty           JC
Dictamnus      HP        30-180            55-60  Well drained			See No. 14. (Pre-chill for 4-8 weeks).
Didymocarpus   Gp        14-56    L        65-70  Well drained    S
Dierama        HP        30-180   L        60-65  Well drained    S		See No. 5.         
Dietes         HHP       30-90             50-60  Well drained    JC
Digitalis      HP, HB    15-20    L         60-65  Peaty           S		Can be sown in situ.
Dimorphotheca  HHA       10-15    L         60-70  Peaty           JC
Dionaea        GP        30-90    L        75-80  Peaty           S		See No. 5.         
Dioon          GP        30-90             70-75  1/2 peat, 1/2 sand 1/4"	See No. 2.         
Dioscorea      HP        21-36              70-75  Peaty           1/8"
Diplarrhena    HP        30-90              55-65  Well drained    JC
Diplolaena     GSh       30-150   L        7-8O   Peaty           JC
Dipsacus       HB        4-30                 -    Well drained    1/4"		Best sown in situ  
Disporum       HP        30-180+  L        55-65  Well drained    JC		See No. 14. (Pre-chill for 6 weeks).
Dizygotheca    HHSh      20-30    L         70     Peaty           S
Dodecatheon    HP        90-365             60-70  Well drained    1/16"	See No. 6.         
Dolichos       HHA       14-30              70     Well drained    1/16"	See No. 13.        
Doronicum      HP        15-20    L         70     Well drained    S		Reduce soil temperature at night
Doryanthes     HHP       30-60              65     Peaty           JC		See No. 13. (Soak for 3 hours).
Draba          HP        30-90             55     Well drained    JC		See Nos. 6 and 14. 
Dracaena       GSh       30-180   L        75-85  Well drained    S		Keep the compost slightly moist
Dracunculus    HP        30-180            55-65  Peaty           JC		Keep the compost slightly moist
Drosera        GP        30-90    L         55-65  Peaty           S		See No. 5.         
Dryas          HP        50-180            60-70  Well drained    JC		See No. 6.         
Duchesnia      HP        30-90    L        55-65  Well drained    JC
Duranta        GSh       30-60              70-75  Peaty           JC

Eccremocarpus  HP        30-60             55-60  Well drained    JC		Cover the seed slightly with silver sand
Echeveria      HHP       21-90    L        55-65  Well drained    JC
Echinacea      HP        10-21    L         70-75  Peaty           1/8"		Reduce soil temperature at night.
Echinops       HP        15-60              65-75  Peaty           1/16"
Echium         HA        7-14               70     Well drained    1/4"		Can be sown in situ.
Edraianthus    HP        30-60    L         55-65  Well drained    1/16"
Egg Plant      GA        10-21             70     Peaty           1/8"		Keep the compost slightly moist
Emilia         HHA       8-15               70     Well drained    1/16"
Epilobium      HP        14-30              50-60  Well drained    1/8"
Episcia        GP        25-40    L         70-80  Peaty           S		Seeds dust like. See also No. 5.
Eranthis       HBb       30-365            60-68  Well drained    1/16"	See No. 6 and 14.
Eremurus       HP        30-365   L        55-65  Well drained    JC		See No. 16         
Erica          GP        30-120   L        60-70  Acid Peat       S		See No. 5.         
Erigeron       HP        15-20              55     Well drained    S
Erinus         HP        20-25              65-75  Well drained    S
Eriobotrya     HHSh      30-180            50     Well drained    JC		See No. 13. (Soak for 24 hours).                   
Eriophyllum    HP        14-42               -     Well drained    1/8"		Best sown outdoors and transplanted.
Eryngium       HP        5-90     L        65-75  Well drained    S		See No. 6.         
Erysium        HP        14-30                -    Well drained    1/4"		Sow in situ.       
Erythrina      HHSh      10-15              70-75  Peaty           1/8"		See No. 13. (Soak for 24 hours).
Erythronium    HBb       30-365            50-60  Well drained    1/8"		See No. 6.         
Eschscholtzia  HA        14-21              60-65  Well drained    1/4"		Resents transplanting, best sown in situ.
Eucalyptus     HHSh, HT  14-90             70-75  Peaty           S		Sow seed/chaff together. See No. 14. Pre-chill 4 wks.
Eucnide        HHA       21-30              60-70  Well drained    1/8"
Eucomis        GBb       20-25              70-75  Peaty           1/16"
Eupatorium     HP        30-90             55     Well drained    JC
Euphorbia      HHA,HP,GSh10-15             70-80  Well drained    1/4"		Pre-chill HPs 7 days, soak 2 hrs. Lime-free compost.
Eustoma        HHP       10-21    L         68-77  Well drained    S
Exacum         GA        15-20    L         70-75  Peaty           S		Seed dust like. See No. 5.

Fascicularia   HHP       30-120   L        60-70  Peaty           S		See No. 5.         
Fatsia         HHSH      15-20              70-75  Peaty           1/4"		Keep the compost slightly moist.
Faucaria       GP        14-30             60     Well drained    JC		Just cover with sharp sand.
Feijoa         HHSH      21-42              55-60  Peaty           1/16"	Rinse seeds 3 times before sowing.
Felicia Amelloides HHP   30                 55-60  Well drained    JC		See No. 14. (Place in fridge for 3 weeks).
Felicia BergerianaHHA    30                 70     Well drained    JC
Ferns          HP, GP    30-180   L         65     Peaty           S		See No. 4.         
Ficus          GSh       15-90    L        70-80  Peaty           S		See No. 5.         
Filipendula    HP        30-90              55-60  Well drained    JC
Flower Lawn    HP        30-180   L        55-65  Well drained    S		See Nos. 6 or 16. 
F.Cabbage  Kale HB      14-21              70-75  Peaty           1/8"		Can be sown in situ
Foeniculum     HP        10-14    D         65     Well drained    1/8"		Dislikes transplanting, sow in situ.
Francoa        HHP       14-30    L        50-55  Peaty           S		See No. 6.         
Freesia        HHBB      25-30             65-75  Peaty           1/4"		See No. 7.         
Fritillaria    HBb       330-540           55-M   Peaty           1/16"	See No. 6.         
Fuchsia        GP        21-90    L        70-75  Peaty           S		See No. 5. Soak in rainwater 3-4 days. Keep moist.

Gaillardia     HP, HHA   15-20    L        70-75  Peaty           S		Reduce soil temperature at night.
Galega         HP        14-60              -      Well drained    1/4"		Best sown outdoors and transplanted.
Galtonia       HBb       15-20             70     Peaty           1/16"
Gardenia       GSh       25-30              70-75  Peaty           1/8"		Use a lime free compost (Ericaceous).
Gaura          HHA       14-30              65-75  Well drained    1/16"
Gazania        HHA       8-21     D         60-65  Well drained    1/8"
Gentiana       HP        14-180   D        70-75  Lime free       JC		See No. 14. (Pre-chill for 2 months).
Gentianopsis   HA        21-30    L          -     Well drained    S		Sow outdoors and thin. Sensitive to root disturbance.
Geranium       HHP       3-21              70-75  Well drained    JC
Geranium       HP        30-90             50     Well drained    JC		See No. 6.         
Gerbera        GP        15-25    L         70-75  Peaty           JC		Sow sharp end down, don't cover completely.
Gesneria       GP        14-21    L         70-75  Peaty           S		See No. 5.         
Geum           HP        21-28+            65-70  Peaty           1/16"	Reduce soil temperature at night.
Gilia          HA        17                  -     Well drained    1/8"		Sow outdoors and thin out.
Glaucidium     HP        30-90             50-55  Peaty           JC
Glaucium       HA        14-21    D         60-65  Well drained    JC		Transplant carefully, best sown In situ.
Globularia     HP        10-30    L         55     Well drained    S		See No. 14. (Pre-chill for 3 weeks).
Gloriosa       HHBb      30                 70-75  Peaty           1/16"
Gloxinia       GP        15-30    L        65-75  Peaty           S		See No. 5.         
Gnaphalium     HP        14-21    L         60-70  Well drained    S
Godetia        HA        7-14               60-65  Well drained    1/4"		Can be sown in situ
Gomphrena      HHA       6-8      L         70-75  Well drained    JC
Gourds         HHA       15-29              80     Peaty           1/4"		Can also treat as No. 5.
Grass Tree     HHP       30-180   L        65     Peaty           S		See No. 4.         
Grasses        HP, HHA   10-90    L        60-75  Peaty           S
Grevillea      HHSh      20-25    L         75-80  Well drained    S		See No. 13. (Soak for 24 hours).
Gunnera        HP        14-60             70-80  Peaty           1/16"
Guzmania       GP        7-90     L        60-70  Peaty           S		See No. 5.         
Gypsophila     hA, HP    10-15             70     Peaty           JC

Hacquetia      HP        30-180            55     Well drained    JC		See No. 16.        
Haemanthus     GBb       7-42               60-65  Peaty           JC
Haplopappus    HP        21-30              60-70  Well drained    1/8"
Hardenbergia   HHP       30-90             55-65  Well drained    1/8"		See No. 13. (Soak for 24 hours).
Harpephyllum   GP        10-30              70-75  Peaty           1/4"		See No. 13.  (Soak for 24 hours).
Haworthia      HHP       21-60    L         60-65  Well drained    JC
Hedychium      HHP       20-25              70-75  Peaty           1/16"	See No. 13.  (Soak for 2 hours).
Hedysarum      HP        14-42              55-65  Well drained    1/16"
Helenium       HP        7-10               70     Peaty           1/16"	Can be sown in situ. Reduce soil temp at night.
Helianthemum   HP        15-20              70-75  Well drained    S		See No. 5.         
Helianthus     HA        10-14              70-85  Peaty           1/4"		Can be sown in situ.
Helichrysum    HHA       7-10     L         65-75  Well drained    S
Heliophila     HHA       14-21              60-65  Well drained    1/16"
Heliopsis      HP        10-15              70     Well drained    1/16"
Heliotropium   HHP       14-42             65-75  Well drained    1/16"
Helipterum     HA        14-20              65-75  Peaty           1/16"	Can be sown in situ
Helleborous    HP        30-545            60-65  Well drained			See No. 6. May need 2 winters outdoors to germ
Hemerocallis   HP        21-49              60-70  Well drained    1/8"		See No. 14. (Pre-chill for 6 weeks).
Hemiphora      GP        30-120            70-75  Peaty           JC
Hepatica       HP        30-360   L         50-55  Well drained    JC		See No. 14. (Pre-chill for 3 weeks).
Heracleum      HP        30-90               -     Well drained    1/4"		Sow in situ. See No. 6.
Herniaria      HP        10-12              70     Well drained    JC
Hesperis       HB        20-25    L         70-85  Peaty           S		Can be sown in situ. Reduce soil temp at night.
Heuchera       HP        10-60    L        65-70  Well drained    S
Hibiscus       HHP, GA   15-30             75-80  Peaty           1/16"	Chip and soak. See Nos. 12  13.
Hieracium      HP        21-30              50-60  Well drained    JC
Hippeastrum    HHBB      30-42              75     Pemy            1/8"
Hollyhock      HA, HP    10-12    L         60-70  Peaty           S		Can be sown in situ.
Holmskioldia   GSh       30-90             60-65  Well drained    JC
Hosta          HP        30-90             50     Peaty           1/16"	Keep compost slightly moist.                  
Humulus        HP        25-30              70-75  Well drained    1/4"		Can be sown in situ.
Hunnemannia    HHA       15-20              70-75  Well drained    1/16"	Can be sown in situ. Makes a nice pot plant.
Hutchutinsia   HP        14-30               -     Well drained    1/4"		Sow in situ.       
Hyoscymus      HB, HA    14-42               -     Well drained    1/8"		Sow in situ.       
Hypericum      HSh       30-90             50-55  Well drained    JC
Hypoestes      GP        10-21              70-75  Well drained    JC
Hyssopus       HP        14-42              60-70  Peaty           1/16"

Iliamna        HP        30-360   L        55-65  Well drained    1/16"	See No. 14. (Pre-chill for 3 weeks).
Impatiens      HHA       21-30    L        70-75  Peaty           S		See No. 5. Keep humidity high until germination.
Incarvillea    HP        25-30              55-65  Well drained    S		See No. 5.         
Indigofera     HHSh      30-90             50     Well drained    1/8		See No. 13. (Soak for 24 hours).
Inula          HP        14-42              55-65  Well drained    1/16"	Can be sown in situ
Ionopsidium    HA        14-21              55-60  Well drained    1/16"	Sow in situ.       
Ipomaea        HHA       5-21              70-85  Peaty           1/4"		Chip and soak. See Nos. 12 and 13.
Iris           HP        30-545            60-70  Peaty           1/4"		See No. 6. May take two winters outdoors.
Isatis         HB        14-42              50     Well drained    1/16"	Sow in situ.       
Ixiolirion     HBb       30-90             50     Well drained    1/16"
Ixora          GSh       30-120            70-75  Well drained    1/16"	See No. 14. (Pre-chill for 3 weeks).

Jacaranda      GSh       10-15              70-85  Peaty           JC
Jacobaea       HA        8-21               60-65  Well drained    1/8"
Jacobinia      GP        30-180            75-80  Peaty           1/8"		See No. 13. soak for 24 hours).
Jasione        HP        10-21              70     Well drained    JC
Jatropha       GP        30-120            65-75  Well drained    1/16"
Jovellana      H/HHSh    30-90             60-50  Well drained    S
Kalanchoe      GP        7-30     L        65-75  Weil drained    S		Likes good air circulation.
Kallstroemia   HHA       14-21             60-65  Well drained    JC
Kaulfussia     HA        21-30              -      Well drained    1/4"		Best sown in situ.  Thin to 6".
Kentranthus    HP        21-40              65-70  Well drained    JC
Kirengeshoma   HP        30-300             55-65  Peaty           JC		Keep compost uniformly moist.
Knautia        HP        10-21                -    Well drained    1/4"		Best sown in situ  Thin to 6".
Kniphofia      HP        10-30              70-75  Peaty           1/4"		Reduce soil temperature at night
Kochia         HHA       10-15    L         70-75  Well drained    S

Lagerstroemia  HHSh      15-20    L         70     Well drained    S		See No. 5.         
Lagunaria      GT        30-180            68-70  Peaty           1/8"		See No. 13. (Soak for 2 hours).
Lamium         HP        30-60              65-70  Well drained    JC
Lampranthus    HHP       15-30    D         65-75  Well drained    JC
Lantana        HHP       42-60             70-75  Peaty           1/8"		See No. 13. (Soak 1 day in hand hot water).
Lapageria      HHP       30-90             70-75  Peaty           1/8"		See No. 13. (Soak 3 days, change water 3-5 times/day)
Lapeirousia    HBb       30-90             55-60  Well drained    1/8"
Larkspur       HA        14-21    D         50-55  Peaty           1/16"	See No. 14. Pre-chill 2 wks. High temps cause dormancy
Lasthenia      HA        17-21                -    Well drained    1/8"		Best sown in situ  Thin to 4".
Lathyrus       HP        20-30             55-65  Peaty           1/4"		Soak or chip the seeds. See Nos. 12 or 13.
Lavatera       HA, HB, HP15-20              70     Peaty           1/16"                 
Lavender       HSh       21-90             55-65  Well drained    JC		See No. 14. (Pre-chill for 4-6 weeks).
Lawrencellida  HHA       21-30    L         65-75  Well drained    S
Layia          HA        8-30               70-75  Well drained    1/8"
Leea           GP        30-90             75-80  Well drained    1/8"		See No. 13.        
Leontopodium   HP        10-42    L        50     Well drained    S		See No. 14. (Pre-chill for 3 weeks).
Leptosiphon    HA        17-21              55-65  Well drained    1/16"	Best sown in situ. 
Leptospermum   HHSh      30-180            60     Peaty           1/16"
Leptosyne      HA        6-12     L         60-65  Peaty           1/8"
Leschenaultia  GSh       30-120            60-70  Well drained    JC
Lewisia        HP        365+     L        50     Well drained    S		See No. 14. (Pre-chill for 5 weeks).
Liatris         HP        20-25              55-75  Well drained    JC		Reduce soil temperature at night.
Libertia       HP        30-180            50     Well drained    1/8"		See No. 6.         
Ligularia      HP        14-42             55-65  Peaty           S		Keep compost slightly moist.
Lilies         HBb       30-365            65-75  Peaty           JC		See No. 10 for more details.
Limnanthes     HA        14-21              60     Well drained    1/16"	Can be sown in situ
Limonium       HP, HHA   10-20    D         65-70  Well drained    JC		Suworowii needs total darkness to germinate.
Linanthus      HA        17-21              -      Well drained    1/8"		Sow outdoors and thin out.
Linaria        HP        10-15              55-60  Well drained    JC		See No. 14. (Pre-chill for 3 weeks).
Linum          HP        20-25              65     Well drained    1/8"		Best sown in situ. 
Lisianthus     HHP       10-21    L         68-77  Well drained    S
Lithops        GP        10-40    L        75-80  Well drained    S
Lobelia        HHA,HHP   15-20    L        65-75  Well drained    S		Perennial seeds in frig 3 mos (See No. 14).
Lomatia        HHSh      30-180            60-65  Well drained    1/8"
Lonas          HA        5-7      D         70     Well drained    JC		Can be sown in situ
Lotus          HHP       14-30             55-65  Well drained    JC		Transplant into 3" pots.
Luculia        HHSH      30-60             55-60  Well drained    JC
Lunaria        HB        10-14              70     Well drained    1/8"		Can be sown in situ
Lupin          HP        15-60    D        55-65  Well drained    1/8"		Soak or chip the seeds. See Nos. 12 or 13.
Lychnis        HP        21-30    L         70     Well drained    S		See No. 12. (pre-chill for 2 weeks).
Lysichitum     HP        30-60             55-65  Peaty           1/4"		Keep compost saturated by standing in water.
Lysimachia     HP        30-90             55-65  Peaty           S		Keep compost moist.
Lythrum        HP        15-30              65-70  Peaty           JC

Macropidia     GP        30-90    L         60-65  Peaty           S		See No. 5.         
Malope         HA        14-30              65-75  Peaty           JC		See No. 14. (Pre-chill for 3 weeks).
Malva          HP        5-21               70     Peaty           1/16"
Mandeville     HHSh      14-30              65-75  Well drained    JC		Sow in 1/2 sand and 1/2 peat.
Mandragora     HP        50-60              55-60  Peaty           1/8"		
Marigold       HHA       5-14               70-75  Peaty           JC
Matricaria     HP        5-21     L         65-75  Well drained    S		Reduce soil temperature at night.
Maurandia      HHP       14-21              65-70  Well drained    1/16"
Meconopsis     HP        14-28             55-65  Peaty           S		Keep slightly moist. See also No. 5.                 
Melia          GT        30-180            55     Well drained    1/8"
Melianthus     HHSh      30-180            70-75  Peaty           1/16"
Mentzelia      HA        5-21               55-60  Well drained    JC
Mertensia      HP        30-60             55-60  Well drained    1/16"	See No. 14. (Pre-chill for 3 weeks).
MesembryanthemumHHA      15-20    D         65-75  Well drained    S
Metrosideros   HHSh      30-90             60-60  Peaty           1/16"
Mimosa         GP        21-30    L        70-75  Well drained    S		See No. 13. Soak 20 mins almost boiling water.
Mimulus        HHP, HP   7-21     L         70-75  Peaty           S		See No. 14. (Pre-chill 3 weeks). Then No. 5.
Mina           HHP       20-25              70     Well drained    1/4"		Chip and soak. See Nos. 12 and 13.
Mirabilis      HHA       7-21     L         70     Well drained    S	                
Moluccelia               21-35    L        60     Well drained    JC		Pre-chill 5 days then 40F temp. nights
Momordica      HHA       14-21              65-75  Peaty           1/8"		Sow seeds singly in 3' pots.
Monarda        HP        10-40              60-70  Peaty           JC		Reduce soil temperature at night.
Moraea         HHBb      30-90             55-60  Well drained    1/8"
Morina         HP        14-42              50     Peaty           1/16"
Mucuna         GP        21-90              65-75  Peaty           1/4"
Muscari        HBb       42-60              60-65  Well drained    1/16"
Mutisia        H/HHSh    30-90             70     Well drained    1/16"
Myosotidium    H/HHP     30-180            65-70  Peaty           1/16"
Myosotis       HB        14-30    D         65-70  Peaty           S		See No. 5 but keep in total darkness.
Myrrhis        HP        14-42              55-65  Well drained    1/8"		Can be sown in situ

Naranjilla     GP        10-30             70-80  Peaty           1/16"
Nasturtium     HA        7-12               65     Well drained    1/4"		Best sown in situ  
Nemesia        HHA       7-21               55-70  Peaty           S		See No. 5.         
Nemophila      HA        7-21               55     Well drained    1/16"	Can be sown in situ.
Neperrthes     GP        30-90             75-85  Peaty           S		Don't let compost dry out. See No. 5.
Nepeta         HP        7-21               60-70  Well drained    JC		Can be sown in situ.                   
Nerine         HHBb      14-21              65-70  Well drained    S		Sow immediately, keep moist, cover with plastic.
Nerium         GSh       30-90    L        65-75  Peaty           S
Nertera        GP        30-90    D        65-70  Well drained    SC		See No. 8.         
Nicandra       HA        15-20              70-75  Well drained    JC
Nicotiana      HHA       10-20    L         70-75  Well drained    S
Nierembergia   HHP       15-30             70-75  Well drained    JC
Nigella        HA        10-15              65-70  Well drained    1/16"	Best sown in situ. Resents transplanting.
Nolana         HHA       14-30              60-70  Well drained    1/16"	Can be sown in situ.
Nomocharis     HBb       30-180   L        45-50  Well drained    JC		See No. 16         
Notholirion    H/HHBb    30-180   L        45-50  Well drained    JC		See No .16         

Ocimum         HA        14-42    L         55-60  Well drained    S
Oenothera      HP        15-30    L         65-70  Well drained    JC		Reduce soil temperature at night.
Omphalodes     HP        14-42              65-75  Well drained    1/8"
Onopordon      HP,HB     30-60              55-60  Well drained    1/4"		Can be sown in situ.
Onosma         HP        30-60              50     Well drained    1/16"
Orchid         GP        90-365   L        65-75  Well drained    S
Orchis         HBb       90-365   L        65-75  Well drained    S
Ornithogalum   GBb       30-180            55-60  Peaty           1/16"	See No. 6          
Orphium        GSh       21-42    L         65-70  Well drained    S
Osteospermum   HHA,HP    10-15    L         60-65  Well drained    JC
Oxalis         HBb       14-60              55-68  Well drained    JC

Pachypodium    GP        30-180   L        65-75  Well drained    S
Paeonia        HP        365+     L        50-60  Well drained    JC		See No. 16. Keep shaded and moist.
Palms          GP        60-180            75-80  Peaty           1/4"		See No. 2          
Pansy          HP        14-21    D        65-75  Well drained    1/16"	See No. 14. (Pre-Chill for 2 Weeks.)
Papaver        HP        10-30    D         55     Well drained    S		Best sown in situ - P.Orientale needs light to germ.
Paradisea      HP        30-180            50     Well drained    1/16"	See No. 6          
Parnassia      HP        30-180            55-65  Peaty           S		Keep water in saucer to keep soil moist.
Parochetus     HP        30-90             50     Well drained    1/16"	See No. 13.
Passiflora     HHP       30-365            70-85  Peaty           1/4"		See No. 13. Soak seed container occasionally.
Pavonia        GSh       30-60             75     Peaty           1/16"
Peanuts        GA        7-21               70-75  Peaty           1/4"		Sow and cover with plastic until germination.
Peltiphyllum   HP        30-90    L        55-60  Peaty           S		Keep water in saucer to keep soil moist.
Penstemon      HP        18-21    L         55-60  Well drained    JC		See No. 14          
Pentas         GP        25-40              70-75  Peaty           S		See No. 5           
Peperomia      GP        15-30              70-75  Peaty           S		See No. 5           
Perilla        HHA       15-30    L         65-75  Peaty           S
Petrea         GSh       30-60    L         65-75  Peaty           S
Petunia        HHA       10-21    L         70-75  Peaty           S      	F1 hybrids and doubles may need 80F to germinate.
Phacelia       HA        12-30    D         55-65  Well drained    1/4"		Best sown in situ. Total dark required.
Phaeomeria     GP        30-90             80     Well drained    1/8"
Phaseolus      GP        30-60              65-70  Well drained    1/16"	Chip and soak. See Nos. 12 and 13.
Philodendron   GP        30-120            75-80  Peaty           1/16"
Phlomis        HP        14-42              60     Well drained    JC
Phlox-Annual   HHA       10-21    D         55-65  Peaty           1/16"	Sow direct into pots, resents transplanting.
Phlox-PerennialHP        25-30    D        70     Peaty           1/16"	See No. 14. (Pre-chill for 4 weeks).
Phormium       HP        30-180            60-65  Peaty           JC                  
Phuopsis       HP        30-40    L         50-60  Well drained    S
Phygelius      HP        10-14              70-75  Well drained    JC
Physalis       HP        21-30    L         70     Well drained    S
Physostegia    HP        21-30              55-75  Peaty           JC		Reduce soil temperature at night.
Phyteuma       HP        30-90             55-65  Well drained    JC		See No. 6           
Phytolacca     HP        30-60             65-70  Well drained    1/8"
Pilea          GP        14-60    L        65-75  Peaty           S		See No. 5.         
Pinguicula     HHP       30-120   L        55     Peaty           S		See No. 5. Use a compost 1/2 peat and 1/2 sand.
Pittosporum    HHSh      30-60              55     Well drained    1/16"	Put seeds in bag, dip in boiling water few secs.
Platycodon     HP        15-30    L         70     Well drained    S
Platystemon    HA        14-30              55-65  Well drained    1/16		Sow in situ        
Plumbago       GP        25-30              70     Well drained    JC
Plumeria       GP        30-180            65-75  Peaty           1/16"	See No. 13.        
Podolepis      HHA       21-30    L         65-70  Well drained    S
Podophyllum    HP        30-180   L        55-60  Peaty           JC		Pre-chill for 3 wks. Keep always moist.
Polemonium     HP        20-25              70     Peaty           1/16"	Reduce soil temperature at night.
Polygala       HSh       30-60    L         60-65  Well drained    JC
Polygonatum    HP        30-545            50     Well drained    1/16"	See No. 6.         
Polygonum      HP,HHA    21-60             70-75  Peaty           1/16"  	Do not overwater      
Portulaca      HHA       14-21    L         70-85  Well drained    S
Potentilla     HP        14-30              65-70  Well drained    JC
Poterium       HP        30-60             50     Well drained    JC		See No. 6.         
Primula-IndoorsGA, GP    20-25    L        55-60  Peaty           S		P.Sinensis needs darkness for germination.
Primula-OutdoorHP        21-40    L        60-65  Peaty           S		See No. 14. (Pre-chill for 3 weeks).
Proboscidia    GA/HHA    15-42             70-75  Peaty           1/4"
Protea         HHT       30-90             65-75  Peaty           1/4"		Sow immediately.   
Prunella       HP        30-60              55-65  Well drained    1/16"
Psidium                  30-60             70-75  Peaty           JC		See No. 13.        
Pulmonaria     HP        30-42              60-65  Peaty           JC
Pulsatilla     HP        30-180            60-70  Well drained    JC		See No. 6. Remove 'tails' before sowing
Pyrethum       HHA, HP   30-60             55     Well drained    JC		Doubleness of flowers increases in 2nd yr.
Pyrola         HSh       30-90    L        55     Peaty           S

Ramonda        HP        30-60    L        55-60  Well drained    S
Ranunculus     HP        30-90             50     Well drained    1/16"	See No. 6.         
Raoulia        HP        30-90    L        55-60  Well drained    S
Ratibida       HA/HB/HP  21-42              68-75  Well drained    1/8"		Reduce soil temperature at night.
Rechsteineria  GBb       30-60              70     Well drained    JC
Rehmannia      H/HHP     21-42    L         60-65  Well drained    JC
Reseda         HB,HA     5-21     L         70     Well drained    S		Extra care required when transplanting.
Rheum          HP        21-42              60-65  Peaty           1/8"
Rhodanthe      HHA       14-30              75-80  Well drained    JC		Can be sown in situ
Rhodochiton    HHP       12-42             60-65  Peaty           JC
Rhodohypoxis   HP        30-90             50     Well drained    JC		Lime free compost required.
Rhoeo          GP        14-60              65-70  Peaty           JC		See No. 13. (Soak for 1/2 hour).
Ricinus        HHA       15-21              70-75  Peaty           1/4"		These seeds are poisonous.
Rochea         HHP       14-42    L         60-70  PBM             S		See No. 5.         
Rodgersia      HP        12-60    L         55-60  Peaty           S                 
Roscoea        HP        30-365   L        50-55  Well drained    S		See No. 16.        
Rothmannia     HHSh      30-90             70-75  Peaty           1/8"		See No. 13. (Soak for 5 hours).
Rudbeckia      HHA, HP   5-21     L         70     Peaty           S		Fulgida See No. 14. (Pre-chill for 2 weeks).
Ruella         HP        30-60             65-75  Peaty           JC
Ruta           HP        30-42              60-65  Well drained    JC

Sagina         HP        10-21              55     Well drained    JC
Saintpaulia    GP        30-60    L        70-75  Peaty           S		See No. 5.         
Salpiglossis   HHA       15-30    D        70-75  Peaty           S
Salvia         HHA, HA   10-14    L        68-80  Well drained    S		For Patens Superba See No. 14. Pre-chill 3 wks.
Sandersonia    HHBb      30-90             75     Well drained    1/8"		See No. 13.        
Sanguinaria    HP        30-90             50-55  Well drained    1/16"
Sanguisorba    HP        30-60              50-55  Well drained    S
Sanvitalia     HA        10-21    L         70     Well drained    S		Take care when transplanting.
Saponaria      HA,HP     10-21    L         70     Well drained    S		See No. 14. (Pre-chill for 3 weeks).
Sarracenia     HP        30-90    L        75-80  Peaty           S		See No. 14. (Pre-chill 7 days) then No. 5.
Saxifraga      HP        15-60             65-75  Well drained    JC		See No. 6.         
Scabiosa       HA        10-15             70-75  Well drained    1/16"
Schefflera     GSh       20-30              75     Peaty           1/16"
Schizanthus    GA        7-14     D         60-75  Peaty           S
Schizopetalon  HHA       6-21               60-65  Well drained    1/16"
Schizostylis   HBb       30-90             55-60  Well drained    1/16"
Scilla         HP        30-180            50     Peaty           1/16"	See No. 6.         
Scutellaria    HP        14-180            50     Well drained    JC
Sedum          HP        15-30             50     Well drained    S		See No. 6.         
Sempervivum    HP        15-30             70     Well drained    S
Senecio        HHA       10-21    L         65-75  Well drained    1/16"
Setcreasia     HHP       30-40              70     Peaty           JC
Shortia        HP        30-60             60-65  Peaty           S		See No. 14. (Pre-chill for 3 weeks).
Sidalcea       HP        14-42              50     Well drained    1/8"
Silene         HP        15-20              70     Well drained    JC		Can be sown in situ.
Silybum        HA        14-21              55-60  Well drained    1/8"		Can be sown in situ.
Simmondsia     HHT       14-21              65-70  Well drained    JC		See No. 13. (Soak for 12 hours).
Sinningia      GP        10-21    L         70     Peaty           S
Sisyrinchium   HP        30-180            50     Well drained    1/8"		See No. 6.         
Smilacena      HP        30-180   L        60-65  Peaty           JC		See No. 14. (Pre-chill for 3 weeks).
Smithiantha    GP        15-40    L         75-77  Peaty           S		Very small seeds   
Solanum        GP        15-21    L         70-80  Well drained    S		Place outdoors in summer for pollination.
Soldanella     HP        30-180   L        55-60  Well drained    JC		See No. 14. (Pre-chill for 4 weeks).
Solidago       HP        14-42              50     Well drained    JC
Sparaxis       HBb       30-90             50-55  Well drained    1/16"
Sparmannia     GSh       21-30              65-75  Peaty           JC
Specularia     HA        12-30                -    Well drained    1/16"	Sow outdoors and thin out.
Spigelia       H/HHP     30-60    L         65-70  Well drained    JC		See No. 14. (Pre-chill for 3 weeks).
Stachys        HP        15-30    L         70     Well drained    JC		Reduce soil temp at night. Grow on the dry side.
Stapelia       GP        7-30     L        65-70  Peaty           S		Use 1/2 peat 1/2 sand.
Stenocarpus    HHT       30-90             65-75  Well drained    JC                  
Stephanotis    GP        15-90             75-80  Peaty           1/16"	Keep the compost slightly moist.
Stereospermum  GSh       30-18O            65-75  Well drained    JC
Stocks         HHA       10-14    L         55-60  Well drained    S		Can be sown in situ.
Stokesia       HP        25-30              70     Peaty           1/16"
Strelitzia     GP        30-180            70-75  Sand            S		See No. 1. Soak up to 3 days, change water daily.
Streptocarpus  GP        15-30    L         55-65  Peaty           S		Very small seeds. See No. 5.
Streptosolon   HHSh      30-90             55-65  Well drained    1/16"
Stylomecon     HA        14-21              -      Well drained    1/16"	Sow outdoors and thin out to 6".
Succisa        HP        10-21             65-70  Well drained    JC
Sutherlandia   H/HHSh    21-30              60-65  Well drained    1/16"	See No. 13. (Soak for 3 hours).
Sweet Pea      HA        10-20    D         55-65  Peaty           1/4		File or soak seeds. See Nos. 12 and 13. Grow cool.
Symphyandra    HP        21-30    L         60-65  Well drained    JC

Tacca          GP        30-270            80-85  Peaty           1/8"		Soak for 72 hours. See No. 13.
Tacitus        HHP       30-90    L        50-60  Well drained    S
Tecophilaea    HBb       30-365            50-55  Peaty           1/16"	Keep compost slightly moist.
Tellima        HP        30-90             55-60  Well drained    S		See No. 6.         
Tephrosia      HP        21-42              65-70  Well drained    JC		Chip and soak. See Nos. 12 and 13.
Tetranema      GP        14-30              65-75  Peaty           JC
Teucrium       HP        25-30              70     Well drained    S
Thalictrum     HP        15-21             50-60  Well drained    1/8"
Thermopsis     HP        15-30              70     Well drained    1/16"	File or soak the seeds. See Nos. 12 and 13.
Thunbergia     HHA       14-21             70-75  Peaty           JC		Keep the compost slightly moist.
Thymus         HP        15-30    L         55     Peaty           S		See No. 5.         
Tiarella       HP        14-90             50     Well drained    S		See No. 6.         
Tibouchina     GSh       30-90    L        60-70  Peaty           S		See No. 5.         
Tigridia       H/HHBb    30-90              55-60  Well drained    1/16"
Tillandsia     GP        30-90    L        60-70  Peaty           S		See No. 5.         
Tithonia       HHA       5-14     L        70-    Well drained    S
Torenia        GA        15-30    L         70-75  Peaty           S		See No. 5.         
Townsendia     HP        30-90             60     Well drained    1/16"	See No. 6.         
Trachelium     HHP       15-21    L         55-60  Well drained    S
Trachymene     HHA       15-30    D         70     Well drained    1/16"	Transplant carefully.
Tradescantia   HP        30-40              70     Peaty           JC		Reduce soil temperature at night.
Tree Fems      HHP       30-120   L        65-70  Peaty           S		See No. 4.         
Trichosanthes  HHA       14-30              65-75  Peaty           1"		Sow singly in 2' pots.
Tricyrtis      HP        30-90             65-70  Well drained    1/8"		Keep compost slighty moist.
Trillium       HP        545+              60-70  Well drained    S		See No. 15. Needs 2 periods 3+ mos in frig
Tripteris      HA        5-14               60-65  Well drained    1/8"		Can be sown in situ.
Trollius       HP        30-365            50     Well drained    S		See No. 14. (Pre-chill for 2 weeks).
Trop. SpeciosumHP        360-720           55-60  Well drained    JC
Tropaeolum     HA        10-15              55-65  Peaty           1/4"		Can be sown in situ
Tulipa         HBb       60-90             50     Well drained    1/8"		See No. 6.         
Tunica         HP        14-60             50     Well drained    1/16		See No. 6.          
Tweedia        GP        30-90             75     Well drained    JC

Urospermum     HP/HB     16-30    L         60-65  Well drained    JC                 
Ursinia        HHA       14-30              55-60  Well drained    JC
Uvularia       HP        30-180            55-60  Peaty           JC
Vallota        HHBb      30-60              65-70  Peaty           1/16"
Veltheimia     HHBb      30-90             55-65  Peaty           1/16"	Keep compost slightly moist
Venidium       HHA       6-14               60-65  Peaty           1/8"
Veratrum       HP        90-365            55-60  Well drained    1/4		See No. 6 and No. 16.
Verbascum      HB,HP     14-30              55-60  Well drained    1/16"	Can be grown in situ
Verbena        HHA,HP    14-90    D        65     Well drained    1/16"	Bonariensis Venosa. See No. 14. Pre-chill 2 wks.
Verbesina      HHA       14-30              60-65  Well drained    1/8"
Veronica       HP        15-30    L         70     Peaty           JC		Reduce soil temperature at night.
Veronicastrum  HP        21-40    L         55-60  Well drained    JC
Vicia          HP        21-40              65-70  Well drained    JC
Vinca          GA        15-30    D        70-75  Peaty           1/16"
Viola          HP        14-21    D        65-75  Well drained    1/16"	See No. 14. (Pre-chill for 2 weeks).
Viscaria       HA        10-21              60-65  Well drained    JC
Vriesia        GP        7-90     L        60.7   Peaty           S		See No. 5.         

Wahlenbergia   HHA       14-28    L         60-70  Well drained    S
Wallflower     HB        10-14              65-70  Well drained    1/4"		Sow in reserve bed, prick out to 6", plant in Oct.
Waterlily      GP        14-30							File seed, soak 75-85'F, change water 2x daily.
Watsonia       HBb       30-180            55-65  Well drained    1/8"		Keep the compost slimy moist.
Xeranthemum    HA        10-15              70     Well drained    JC		Transplant carefully.
Xerophyllum    HP        30-60             55-60  Peaty           JC

Yucca          HA        30-365            65-75  Well drained    JC		Filamentosa germinates at 55F.

Zantedeschia   HHP       30-90    L        70-80  Peaty           S		See No. 13. Keep compost quite moist.
Zauschneria    H/HHP     30-60    L         60-65  Well drained    JC
Zea            HHA       5-14               70     Peaty           1/4"		Sow seeds individually in peat pots.
Zinnia         HHA       10-24              75-80  Peaty           1/16"	Sow seeds individually in peat pots.

Trees and Shrubs                      back to top

Variety	     Type	Germ Days     Irr   Temp   Media	Sow Depth	Comments - Links
Abies          HT        21-30    L        68-75  Peaty           S		Soak overnight then pre-chill 21 days. (No. 14).
Acer           HT        30-365+  L        65-70  Peaty           S		Soak 2 days, No. 15, 2 mos warm moist, 2 mos fridge
Ailanthus      HT        30-90    L        50-60  Well drained    S		Chip, soak then No. 14 for 2 weeks.
Akebia         HSh       30-180   L        50-60  Peaty           S		See No. 14. (4 weeks).
Albiza         HSh/HT    30-90             65-75  Well drained    1/8"		Soak for 12 hours in tepid water before sowing.
Amorpha        HSh       30-120            50-60  Well drained    1/16"	Soak for 12 hours in tepid water before sowing.
Andromeda      HSh       30-60    L        50-60  Peaty           S		Keep soil moist - stand in saucer of water.
Araucaria      HT        30-60    D         55-60  Peaty           1/4"		Sow immediately    
Arbutus        HT        60-90    L        65-70  Peaty           S		See No. 14. (6-8 weeks).                
Arundinaria    HSh       30-90    L        70     Peaty           JC		Keep soil moist - stand in saucer of water.
Asterolasia    HSh       30-180            55-65  Well drained    1/16"
Aucuba         HSh       30-90             65-70  Well drained    1/8"
Azalea         HSh       50-90    L        55-60  Peaty           S		See No. 5 or No. 6. Keep shaded from direct sun.

Berberis       HSh       60-180   L        50-65  Well drained    S		See No. 14. (8 weeks).
Betula         HT        30-90    L        65-75  Peaty           S		See No. 14. (10 weeks).
Buddleia       HSh       20-30    L         70-75  Peaty           S		See No. 14. (Pre-chill for 4 weeks).
Bupleurum      HSh       14-60              55-60  Well drained    JC

Calluna        HSh       30-60    L        65-70  Peaty           S		See No. 14. (Pre-chill for 4 weeks).
Calocedrus     HT        30-90    L         50-60  Peaty           JC		See No. 14. (Pre-chill for 4 weeks).
Camellia       HSh       30-90             70-75  Peaty           1/4		See No. 13 . May also benefit from No. 14.
Caragana       HSh       14-21    L         65-70  Well drained    S		See No. 13.        
Carpinus       HT        30-365   L        65-70  Well drained    S		See No. 15. (1 mo at 70F, 4 mos frig.) or No. 16.
Caryopteris    HSh       30-90             65-70  Well drained    JC
Catalpa        HT        14-30    L        60-70  Peaty           S		Give good ventilation to prevent damping off.
Ceanothus      HSh       30-60    L         65-70  Well drained    S		Soak overnight then treat as No. 14 for 2 wks.
Cedrus         HT        14-60    L        60-65  Well drained    S		Soak for 2-3 hrs then treat as No. 14 for 3 wks.
Cephalotaxus   HSh       14-60             60-65  Peaty           JC
Cercis         HSh       30-90    L        70-75  Well drained    JC		See No. 13. Soak in hot water, No. 14 for 2-3 mos.
Chaenomeles    HSh       70-90    L        55-65  Well drained    S		See No. 14. (Pre-chill for 7-10 weeks).
Chamaecyparis  HT,HHT    30-60    L         50-60  Peaty           JC		See No. 14. (Pre-chill for 3 weeks).
Chimonanthus   HSh       63-90    L        50-60  Well drained    S		See No. 14. (Pre-chill for 5-8 weeks).
Chionanthus    HSh       30-180   L        60-70  Well drained    S		See No. 14. (Pre-chill for 1 month)
Cistus         HSh       7-30     L         65-70  Peaty           S		See No. 5.
Clerodendron   HSh       60-90    L        65-70  Well drained    S		See No. 14. (Pre-chill for 4-6 weeks).
Colutea        HSh       7-21               65-70  Well drained    1/16	Chip and soak. See Nos. 12 and 13.
Cordyline      HHSh      30-60             65-70  Peaty           1/16
Cornus         HSh       90-730   L        50-60  Well drained    S		See No. 15. (2 mos 70F, 3 mos in frig) or No. 16.
Coronilla      HHSh      30-60              65-75  Well drained    JC
Cotoneaster    HSh       180-365  L        70     Acid Peaty      S		See No. 15. (3-5 mos 70F, 3 mos frig) or No. 16.
Crataegus      HSh       180-730  L        50-60  Well drained    S		See No. 15. (3-5 mos 70F, 3 mos frig) or No. 16.
Crinodendron   H/HHSh    30-120            55-65  Well drained    JC		See No. 13. (Soak for 3 hours).
Cryptomeria    HT        30-60             55-65  Peaty           1/16
Cupressus      HT        30-90    L        65-75  Peaty           S		See No. 14. (Pre-chill for 3 weeks).
Cytisus        HSh       25-30    L         70-75  Well drained    S		See No. 13. Do final transplant while still small.

Daboecia       HSh       30-120   L        55-65  Acid peat       S		Never allow compost to dry out.
Daphne         HSh       150- 365 L        50-60  Well drained    S		See No. 15.(2 mos at 70F +3 mos frig)
Davidia        HT        300-365           50-65  Peaty           1/4		See No. 15.(3-4 mos warm moist, 3-4 mos frig
Decaisnea      HSh       30-180            55-60  Well drained    1/4		

Elaeagnus      HT/HSh    140-180           50-65  Well drained    1/16		See No. 15.(4 weeks warm moist, 8-12 wks frig
Enkianthus     HSh       25-60    L        60-70  Peaty           S		See No. 14. (Pre-chill for 6 weeks).
Erica          HSh       30-60    L        65-70  Peaty           S		See No. 14. (Pre-chill for 4 weeks).
Euonymus       HSh       220-365           50-65  Well drained    1/16		See No. 15.(8-12 wks warm moist, 8-16 wks frig

Fagus           HT       30-365   L        50-60  Well drained    JC		Soak o/night, No. 14 (pre-chill 6 wks), or No. 16.
Forsythia      HSh       30-90              55-65  Well drained    JC
FremontodendronHHSh/HSh  30-60              65-70  Well drained    JC
Fuchsia        HSh       21-90    L        70-75  Peaty           S		See No. 5. Soak in rain water 3-4 days. Keep moist.

Gaultheria     HSh       30-60    L         65-70  Peaty           S		See No. 14. (Pre-chill 4-10 wks). Acid soils only.
Genista        HSh       14-30              55-65  Well drained    JC		See No. 13.        
Gingko         HT        30-60    L        70-75  Peaty           1/8		See No. 14. (Pre-chill 8-10 weeks).
Gleditschia    HT        14-30              65-70  Well drained    JC		Chip and soak for 24 hours. See Nos. 12 - 13.
Gymnocladus    HT        30-90             65-70  Well drained    1/4		Chip and soak for 24 hrs. See Nos. 12-13.

Hamamelis      HSh       270-365  L        50-60  Peaty           1/16		See No. 15. (3 mos at 70F then 3 mos in fridge).
Hebe           HHSh      15-30              70     Peaty           JC
Hibiscus       HSh       30-60             70-75  Well drained    1/16		See No. 13.    
Hippophae      HSh       30-180   L        55-65  Well drained    JC		See No. 14. (Pre-chill for 14 weeks).
Holodiscus     HSh       30-180            60-65  Well drained    S

Indigofera     HSh       30-60              65-70  Well drained    1/16		Pour nearly boiling water over seed and soak o/night.

Jasminum       HSh       20-30              70-75  Well drained    JC
Juglans        HT        30-180   L        50-60  Peaty           JC		See No. 14. (2-3 weeks). Plant with dividing line up
Juniperus      HT        30-180   L        45-50  Peaty           S		Soak for 24 hrs. High temps prevent germination.

Kalmia         HSh       30-60    L        70     Sandy peat      S		See No. 14. (Pre-chill for 3 months).
Kalmiopsis     HSh       30-60    L         65-70  Acid, sandy peatS
Koelreuteria   HT        30-60    L        55-65  Peaty           JC		See No. 13. Boiling water, then No.14, place in frig 3 wks.
Kolwitzia      HT        40-70    L        65-70  Well drained    JC		Soak for 24 hrs then See No. 14. Pre-chill for 4 wks

Labumum        HT        30-60              65-70  Well drained    1/16		Chip and  soak. See Nos. 12 and 13.
Larix          HT        30-90    L        65-75  Peaty           S		See No. 14. (Pre-chill for 1 month).
Laurus         HT        40-90    L        50-60  Peaty           JC		Soak for 24 hours then See No. 14. Pre-chill 1 mo
Ledum          HSh       30-60    L        55-65  Acid peat       S
Leycesteria    HSh       30-60              60-65  Sandy peat      JC
Liquidambar    HT        14-365   L        65-75  Peaty           S		See No. 14. (Pre-chill for 3 mos). Don't dry out.
Liriodendron   HT        60-365   L        65-75  Peaty           S		See No. 16.
Loiseleuria    HSh       30-60              65-75  Well drained    JC
Lonicera       HSh       180+     L        60-70  Well drained    JC		See No. 14. Place in frig for 3 mos. keep below 75F.

Magnolia       HT        120+     L        50     Well drained    JC		See No. 14. Place in frig 4 months.
Mahonia        HSh       90-120   L        50     Peaty           JC		See No. 14. (Pre-chill for 3 weeks).                   
Malus          HT        120-365  L        50     Peaty           JC		Soak for 24 hrs then No. 14. Pre-chill 14 wks
Menziesia      HSh       30-60              55     Sandy peat      S		Keep compost uniformly moist.
Morus          HT        14-30    L         65-75  Peaty           S		See No. 5. or See No. 14. Pre-chill 1-3 mos
Myrtus         HHSH      30-90             55-65  Peaty           JC		See No. 13.        

Nyssa          HT        90-365   L        50     Peaty           S		See No. 14. (Pre-chill for 3 months).

Olea           HHT/HT    30-120            65-70  Well drained    1/8"
Olearia        H/HHSh    30-60    L         65-70  Well drained    S
Ostrya         HT        365+     L        50-60  Well drained    JC		See No. 16.

Paeonia        HSh       270+     L        70     Well drained    JC		See No. 15.        
Parthenocissus HSh       60-180   L        60-70  Well drained    JC		See No. 13 then 14. (Pre-chill for 6 wks).
Paulownia      HT        30-60    L         55-70  Peaty           S		See No. 5 
Philadelphus   HSh       30-60              65-70  Well drained    JC
Phlomis        HSh       30-90             65-75  Well drained    JC
Phyllodoce     HSh       30-60    L         55-65  Peaty           S
Picea          HT        30-60    L        55     Well drained    S		See No. 14. (Pre-chill for 21 days).
Pieris         HSh       30-70    L        65-70  Acid Peat       S		See No. 5.         
Pinus          HT        30-60    L        55-65  Well drained    S		Soak seed, then No 14. (Pre-chill 6 weeks).
Pittosporum    HHSh      30-60             55     Well drained    1/16"	Put seeds in bag, dip in boiling water for few secs.
Prunus         HT        120-365  L        65-75  Well drained    1/16"	Soak o/night then No. 14. Pre-chill 4 mos
Pseudotsuga    HT        30-180   L        75     Peaty           S		See No. 14. (Pre-chill for 8 weeks).
Ptelia         HSh/HT    80-120             55-60  Well drained    1/8"		See No. 14. (Pre-chill for 3 weeks).
Punica         HHSH      30-40    L         70-75  Well drained    S		See No. 13         
Pyracantha     HSh       40-180   L        50     Peaty           JC		See No. 14. (Pre-chill for 6 weeks).

Quercus        HT        120-365  L        50     Peaty           JC		Soak for 24 hrs, then No. 14. Pre-chill 3 mos

Rhododendron   HSh       50-90    L        55-60  Acid Peat       S		See No. 6. Keep shaded from direct sun.
Rhodotypos     HSh       365+     L        55-65  Peaty           JC		See No. 15. (3 mos 70F +3 mos chill +3 mos 70F).
Rhus           HSh       30-90             65-70  Well drained    JC		Chip or soak. See Nos. 12 and 13.
Robinia        HT        7-30    L         65-75  Well drained     S		See No. 13. Soak in hand hot water.
Rosa           HSh       30-365+  L        55     Well drained    JC		See  No. 16 or No. 14. (Pre-chill 3 months).

Santolina      HSh       15-30              65-70  Well drained    JC
Sarcococca     HSh       30-120             55-65  Peaty           JC
Sequoia        HT        7-60     L        65-70  Peaty           S
Skimmia        HSh       30-180   L        50-60  Acid Peat       S		Soak overnight then No. 14. (Pre-chill 4 wks).
Sophora        HT        10-21              70-85  Well drained    JC		Chip and soak seeds. See Nos. 12 and 13.
Sorbus         HT        120-180  L        65-70  Well drained    S		See No. 14. (Pre-chill 4 months).
Spartium       HSh       7-30               70     Well drained    JC		Chip and soak. See Nos. 12 and 13.
Spiraea        HSh       30-40              55-65  Well drained    JC
Styrax         HSh       30-90             55-65  Well drained    JC
Syringa        HSh       14-60    L         70     Peaty           S		See No. 14. (Pre-chill for 3 weeks).

Tamarix        HSh       30-50    L         65-70  Peaty           S		See No. 5.         
Taxodium       HT        14-60    L         70     Peaty           S		See No. 14. (Pre-chill for 30 days).                   
Taxus          HT        365+     L        70     Peaty           JC		See No. 15. (3 mos 70F + 3 mos chill + 3 mos 70F).
Thuja          HSh       14-60    L        55     Peaty           S		See No. 14. (Pre-chill for 4 weeks).
Trachycarpus   HT        40-90    L        55-65  Peaty           S		See No. 14. (Pre-chill for 4 weeks).
Tsuga          HT        7-60     L        60     Peaty           S		See No. 14. (Pre-chill for 3 months).

Ulex           HSh       14-21              65-75  Well drained    JC		See No. 13. 

Vaccinium      HSh       365+     L        65-75  Acid Peat       S		See No. 16. 
Viburnum       HSh       240-540  L        70     Well drained    JC		See No. 15. (3 mos 70F + 3 mos chill + 3 mos 70F).

Wistaria       HSh       30-60              55-65  Well drained    1/8"		Chip and soak in hand-hot water See Nos. 12 and 13.

Zelkova        HT        14-60    L        50-70  Peaty           S		See No. 5 or No. 14. (Pre-chill for 2 weeks).

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