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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.

-M-
PlantDays for
Germination
Light/
Dark
Temp °FMediumDepth of
Seed
Special Info
Macropidia (tp)30-90L60-65Peaty SSSee Begonia
Magnolia (ht)120+ s/iL50 Well-drainedJC#3 for 4 months
Mahonia (hsh)90-120 s/iL50 PeatyJC#3 for 3 weeks
Malope (ha)14-30.65-75Peaty JC#3 for 3 weeks
Malus (ht)120-365 s/iL50 PeatyJC#2 for 24 hours, then #3 for 14 weeks.
Malva (hp)5-21.70Peaty 1/16".
Mandevilla (hhsh)14-30.65-75Well-drained JCMedium should be ½ sand and ½ peat.
Mandragora (hp)50-60.55-60Peaty 1/8".
Marigold (hha)5-14.70-75Peaty JC.
Matricaria (hp)5-21L65-75Well-drained SSReduce temp at night.
Maurandia (hhp)14-21.65-70Well-drained 1/16".
Meconopsis (hhp)14-28 s/i.55-65Peaty SSKeep soil slightly moist. See Begonia
Melia (tt)30-180 s/i.55Well-drained 1/8".
Melianthus (hhsh)30-180 s/i.70-75Peaty 1/16".
Mentzelia (ha)7-21.55-60Well-drained JC.
Menziesia (hsh)30-60.55Sandy peat SSKeep soil uniformly moist.
Mertensia (hp)30-60 s/i.55-60Well-drained 1/16"#3 for 3 weeks.
Mesembryanthemum (hha)15-20D65-75 Well-drainedSS.
Metrosideros (hhsh)30-90 s/i.60-65Peaty 1/16".
Mina (hhp)20-25.70Well-drained ¼"#1, then #2.
Mimosa (tp)21-30 s/iL70-75Well-drained SS#2 in almost boiling water for 20 minutes.
Mimulus (hhp,hp)7-21L70-75Peaty SS#3 for 3 weeks. Also: See Begonia
Mirabilis (hha)7-21L70 Well-drainedSS.
Moluccella (hha)21-35 s/iL60 Well-drainedJC#3 for 5 days, then sow keeping night temps at 40ºF.
Momordica (hha)14-21.65-75Peaty 1/8"Sow singly in 3" pots.
Monarda (hp)10-40.60-70Peaty JCReduce temp at night.
Moraea (hhbb)30-90 s/i.55-60Well-drained 1/8".
Morina (hp)14-45.50Peaty 1/16".
Morus (ht)14-30L65-75Peaty SS#3 for 1 to 3 months.
Mucuna (tp)21-90 s/i.65-75Peaty ¼".
Muscari (hbb)40-60.60-65Well-drained 1/16".
Mutisia (h/hhsh)30-90 s/i.70Well-drained 1/16".
Myosotis (hb)14-30D65-70Peaty SSSee Begonia
Myosotidium (h/hhp)30-180 s/i.65-70Peaty 1/16".
Myrrhis (hp)14-42.55-65Well-drained 1/8"Can be sown IS.
Myrtus (hhsh)30-90 s/i.55-65Peaty JC#2.




© 2001 by Ernestina Parziale

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