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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.



-B-
PlantDays for
Germination
Light/
Dark
Temp °FMediumDepth of
Seed
Special Info
Baileya (hhp)7-30.60-65.JC.
Balsamorrhiza (hp)14-45.60-65.1/16".
Banana (ghs)7-180 s/i.70-80Peaty½"See Banana
Banksia (hhsh)30-90 s/i.65-70PeatySSSee Begonia
Baptisia (hp)5-30.70-75.¼"#2, then #1
Basil (hha)7-10.60-70.1/16"Can be direct seeded (IS)
Bauhinia (tsh)21-42.75-85Peaty¼"#2 in hand-hot water for 48 hours.
Beaufortia (hhsh)14-60L55-65PeatySSSee Begonia
Beaumontia (tsh)7-30.70-75Peaty1/16".
Begonia (hhp)15-60 s/iL70-80PeatySSFibrous 70-75°; tuberous 65-70° See Begonia
Belamcanda (hp)14-60 s/i.70-85.SS#3 for 7 days
Bellis (hb)10-15L70Peaty1/16"Reduce soil temp at night
Beloperone (tp)30-180 s/iL70-75PeatySSSee Begonia
Berberis (hsh)60-180 s/iL50-65.SS#3 for 8 weeks
Bergenia (hp)30-180 s/i.60-70PeatySS#3 for 2 weeks
Berlandiera (hhp)30-90L60-70.SS.
Beta (hb)14-21.55-65.¼"Usually sown direct (IS)
Betula (ht)30-90 s/iL65-75PeatySS#3 for 10 weeks
Bignonia (tp)30-90 s/i.60-70PeatySS.
Billadiera (hhp)30-60.55Sandy peatJC.
Billbergia (hhp)7-90L60-70PeatySSSee Begonia
Biscutella (hha)14-21.55-65.JCCan be sown direct (IS)
Bixa (tt)30-180 s/i.75-80PeatyJC.
Blandfordia (hhp)30-100 s/i.60-70Sandy peatJC.
Bletilla (hhp)30-365 s/iL65-70PeatySSSee Begonia
Boea (tp)20-60 s/iL70-75PeatySSSee Begonia
Boronia (tsh)30-60L65-75PeatySSSee Begonia
Brachycombe (hha)10-18.70.JC.
Brimeura (hbb)30-60 s/i.60-65Sandy peatJC.
Bromeliads (tp-ghs)7-90 s/iL60-70PeatySSSee Begonia
Browallia (tp)14-21L75PeatySSSee Begonia
Brunfelsia (tp)30-90 s/i.70-80.JC.
Buddleia (hsh)20-30L70-75PeatySS#3 for 4 weeks
Bulbinella (hhbb)30-90 s/i.55.JC.
Bupleurum (hsh)14-60.55-60.JC.
Bupthalmum (hp)14-30>L70-75.SS.




©2001 by Ernestina Parziale CH

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