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Seed Germination Chart

Some Abbreviations Used
A: Annual - a plant which lives one year only from seed.
P: Perennial - a plant which comes back every year.
H: Indicates a plant hardy in northern zones.
T: Indicates a tender plant, shrub (sh), or tree (t) which will not winter over in northern zones.
IS: In Situ; can be planted outside directly where it is to grow.
JC: Just Cover; barely cover with soil
SS:Surface Sow; press seeds gently into to the soil to make good contact, but do not cover with any additional soil; these seeds require light to germinate.
L/D: Light or Dark; seeds which require dark should have the flat covered with newspaper or brown paper or something similar to keep light from getting to the seeds. Plants requiring light to germinate are to be surface sown.
S/I: Germination is slow and irregular
HH: Half hardy. If an annual, it will usually not reseed itself in northern zones, and if perennial, will be killed by freezing temperatures.
TP: Tender perennial (or shrub, etc). Will not winter over in northern zones, but makes a good greenhouse specimen.
GHS: Tropical or delicate plant best grown in greenhouse.
BB: Bulb.

NOTE: The heading 'Medium' refers to a sterile potting soil.

PlantDays for
Temp °FMediumDepth of
Special Info
Eccremocarpus (hp)30-60 s/i.55-60Well-drained JCCover seed slightly with silver sand.
Echeveria (hhp)20-90 s/iL55-65Well-drained JC.
Echinacea (hp)10-21L70-75Peaty Barely cover#3 for 2 months.
Echinops (hp)15-60.65-75Peaty 1/16".
Echium (ha)7-14.70Well-drained ¼"Can be sown IS.
Edraianthus (hp)30-60L55-65Well-drained 1/16".
Egg Plant (tp)10-21 s/i.70Peaty 1/8"Keep soil slightly moist.
Elaeagnus (ht, hsh)140-180 s/i.50-65Well-drained 1/16"#4; warm and moist for 4 weeks, then cold for 8 to 12 weeks.
Emilia (hha)8-15.70Well-drained 1/16".
Enkianthus (hsh)25-60 s/iL60-70Peaty SS#3 for 6 weeks.
Epilobium (hp)14-30.50-60Well-drained 1/8".
Episcia (tp)25-40L70-80Peaty SSSeeds look like dust. See #5 and Begonia
Eranthis (hbb)30-365 s/i.60-70Well-drained 1/16"#3 and See Bonsai
Eremurus (hp)30-365 s/iL55-65Well-drained JC.
Erica (tp)30-120 s/iL60-70Acid peat SS See Begonia
Erica (hsh)30-60 s/iL65-70Peaty SS#3 for 4 weeks.
Erigeron (hp)15-20.55Well-drained SS.
Erinus (hp)20-25.65-75Well-drained SS.
Eriobotrya (hhsh)30-180 s/i.50Well-drained JC#2 for 24 hours.
Eriophyllum (hp)14-42.-Well-drained 1/8"Best sown IS.
Eryngium (hp)5-90 s/iL65-75Well-drained SSSee Bonsai
Erysium (hp)14-30.-Well-drained ¼"Best sown IS.
Erythrina (hhsh)10-15.70-75Peaty 1/8"#2 for 24 hours.
Erythronium (hbb)30-365 s/i.50-60Well-drained 1/8"See Bonsai
Eschscholtzia (ha)14-21.60-65Well-drained ¼"Best sown IS. Does not like to be transplanted.
Eucalyptus (hhsh, ht)14-90 s/i.70-75Peaty SS#3 for 4 weeks. Sow seeds and chaff together.
Eucnide (hha)21-30.60-70Well-drained 1/8".
Eucomis (tbb)20-25.70-75Peaty 1/16".
Euonymus (hsh)220-365 s/i.50-65Well-drained 1/16"#4; warm, moist for 12 weeks, then 8-16 weeks cold.
Eupatorium (hp)30-90 s/i.55Well-drained JC.
Euphorbia (hha, hp, tsh)10-15 s/i.70-80Well-drained ¼"#3 for 7 days, then #2 for 2 hours. Sow in lime free compost.
Eustoma (hhp)10-21L70-75Well-drained SS.
Exacum (ta)15-20L70-75Peaty SSSeed looks like dust. See #5 and Begonia

© 2001 by Ernestina Parziale