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ONTARIO ROCK GARDEN SOCIETY |
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Germination guide A1 |
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Genus |
Species |
Germination |
Remarks |
|
Abelmochus |
manihot |
K |
|
|
Acacia |
podalyrifolia |
6 7 |
|
|
Acacia |
williamsonii |
6 7 * |
Immerse in boiling
water for 1 minute, |
|
Acaena |
adscendens |
A |
- |
|
Acaena |
buchananii |
E |
|
|
Acaena |
caesiiglauca |
E |
|
|
Acaena |
hieronymi |
A |
|
|
Acaena |
magellanica (glaucophylla) |
E |
|
|
Acaena |
microphylla |
E |
|
|
Acaena |
microphylla 'Blue Haze" |
E 7 |
|
|
Acaena |
novae-zealandiae |
E |
|
|
Acaena |
pinnatifida |
E |
|
|
Acaena |
saccaticupula |
E 2 7 |
|
|
Acantholimon |
all species |
B * |
Genus rarely sets seed in germination, short viability, ungerminated seed should be discarded after 4 w |
|
Acantholimon |
araxanum |
A * |
ditto |
|
Acantholimon |
armenum |
A * |
ditto |
|
Acantholimon |
bracteatum capitatum |
A * |
ditto |
|
Acantholimon |
caryophyllaceum |
A * |
ditto |
|
Acantholimon |
glumaceum |
A * |
ditto |
|
Acantholimon |
hohenackeri |
B * |
ditto |
|
Acantholimon |
reflexifolium |
A * |
ditto |
|
Acanthopanax |
sessiliflorus |
7 * |
6m @ 20 C, then 3m @ 4 C |
|
Acanthus |
hungaricus |
E 7 |
- |
|
Acanthus |
mollis |
F 7 |
|
|
Acanthus |
spinosus |
F 7 |
|
|
Acer |
argutum |
L 7 |
|
|
Acer |
glabrum ssp. douglasii |
H 7 |
|
|
Acer |
griseum |
G 6 7 |
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 |
G * |
Remove inner seed coat after 4 C cycle |
|
Acer |
palmatum 'Dissectum Atropurpureum' |
G |
- |
|
Acer |
pennsylvanicum |
L * |
Remove inner seed coat |
|
Acer |
sieboldianum |
! L * |
Sow outdoors as soon as ripe |
|
Acer |
mandshuricum |
G 3 6 7 * |
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 |
pseudosieboldianum |
A 3 * |
ditto |
|
Acer |
tetramerum |
! L * |
Sow outdoors as soon as ripe |
|
Achillea |
ageratifolia |
B 3 |
- |
|
Achillea |
alpina |
A |
|
|
Achillea |
macrophylla |
D 2 3 * |
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|
Achillea |
anthea |
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|
Achillea |
biserrata |
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Achillea |
clavennae |
K |
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Achillea |
clavennae v. intercedens |
K |
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Achillea |
filipendula 'Gold Plate' |
A |
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Achillea |
holosericea |
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Achillea |
huteri |
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Achillea |
nana |
B |
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Achillea |
sp. |
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Achillea |
tomentosa |
A |
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Achillea |
umbellata |
A |
In situ in spring |