Abeliophyllum distichum
!
Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Abelmoschus manihot
K
Sow @ 10°C. Most species for which we suggest this temperature will also germinate at 20°C, but prefer the cooler temperature for sturdy growth.
Abies koreana 'Silberlocke'
Acacia podalyrifolia
Acacia williamsonii
immerse in boiling water for 1 minute, then soak x 2 days in cool water
Acaena buchananii
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Acaena caesiiglauca
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Acaena glaucophylla
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Acaena magellanica
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Acaena microphylla
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Acaena microphylla 'Blue Haze'
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Acaena microphylla 'Kupfer'
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Acaena microphylla 'Kupferteppich'
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Acaena novae-zealandiae
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Acaena pinnatifida
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
Acaena saccaticupula
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
2
Requires darkness.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Acaena saccaticupula 'Blue Haze'
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
2
Requires darkness.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Acantholimon araxanum
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon armenum
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon bracteatum
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon bracteatum capitatum
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon caryophyllaceum
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon glumaceum
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon hohenackeri
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon karelinii
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon litvinovii
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Acantholimon reflexifolium
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon sp.
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acantholimon ulicinum
B
Sow @ 20°C. If seed does not germinate within 3 months, try 4°C for 1-2 months, then 20°C again.
genus rarely sets seed, short viability, ungerminated seed should be discarded after 4 weeks
Acanthopanax sessiliflorus
*
This species needs special care as described.
20°C x 6 months then 4°C x 3 months
Acanthopanax sessiliflorus v. parviceps
*
This species needs special care as described.
20°C x 6 months then 4°C x 3 months
Acanthus hungaricus
E
Sow @ 20°C for 6 weeks, then place @ 4°C for 6 weeks, then slowly raise temperature to 10°C for 6 weeks. If there is no germination, repeat the cycle. This mimics fall sowing outdoors for spring germination.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Acanthus mollis
Acanthus mollis Latifolius group
Acanthus spinosus
Acer amurensis
Acer argutum
Acer carpinifolium
Acer caudatum ssp. ukurunduense
!
Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.
G
Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
Acer davidii
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Acer ginnala
Acer glabrum
Acer glabrum ssp. douglasii
Acer griseum
G
Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
5% germination, soak 3 weeks in water to remove outer seed coat or pry it off, then slice off small portion of inner seed coat with razor
Acer japonicum
remove inner seed coat after 4°C cycle
Acer japonicum aconitifolia
L
Expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring.
Acer japonicum dissectum
remove inner seed coat after 4°C cycle, may take 3 years to germinate
Acer mandshuricum
G
Sow @ 4°C for 3 months, then place @ 20°C for 3 months.
3
Requires light or the small seeds should be surface sown.
6
Requires scarification. Nick or rub between sheets of sandpaper.
7
Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking.
*
This species needs special care as described.
soak 3 weeks in water to remove outer seed coat or pry it off, then slice off small portion of inner seed coat with razor
Acer pensylvanicum
remove inner seed coat