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ONTARIO ROCK GARDEN SOCIETY |
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Germination guide |
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Genus |
Species |
Germination |
Remarks |
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Baccharis |
magellanica |
K |
. |
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Baileya |
multiradiata |
A |
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Ballota |
acetabulosa |
A |
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Ballota |
pseudodictamnus |
A |
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Balsalm |
alpinum |
A |
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Banksia |
ericifolia |
J * |
heat in oven at 125 deg C to open cone, then plunge in cold water immediately and soak for 1 day, dry and shake to remove seeds |
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Baptisia |
alba |
A 7 |
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Baptisia |
australis |
A 2 7 * |
subject to damping off, scarification leads to rotting |
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Baptisia |
lactea |
A 7 |
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Baptisia |
leucantha |
G 7 * |
subject to damping off |
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Baptisia |
leucophaea |
G 7 * |
ditto |
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Baptisia |
perfoliata |
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Baptisia |
sp. |
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Baptisia |
tinctoria |
A 6 7 |
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Begonia |
sp. |
A |
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Begonia |
grandis |
A |
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Begonia |
grandis 'Alba' |
A |
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Belamcanda |
chinensis |
A 3 |
outdoors in fall |
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Bellevalia |
forniculata |
J |
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Bellevalia |
hyacinthoides |
J * |
subject to damping off |
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Berberis |
thunbergii 'Aurea' |
G N 8 * |
plant 2 cm deep, wash clean 14d |
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Berberis |
thunbergii 'Gold Ring' |
G N 8 * |
ditto |
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Berberis |
vulgaris |
K |
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Bergenia |
cordifolia |
A |
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Bergenia |
cordifolia 'Purpurea' |
A |
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Betula |
pumila s. str v. depressa |
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Betula |
sp. |
J |
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Betula |
apoiensis |
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Betula |
glandulosa |
G 4 |
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Betula |
middendorffii |
J 3 |
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Bidens |
'Golden Eye' |
A |
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Bidens |
lutea |
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Biscutella |
laevigata |
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Bletilla |
striata |
A * |
sow in moist compost as soon as seed is ripe; include soil from an existing plant to provide symbiotic fungi |
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Boltonia |
asteroides |
A 3 |
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Boltonia |
asteroides v. latisquama |
A 3 |
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Borago |
nana |
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Borago |
officinalis |
A N 1 |
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Bouteloua |
curtipendula |
A |
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Bouteloua |
gracilis |
A |
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Boykinia |
aconitifolia |
A 3 |
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Boykinia |
grandiflora |
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Boykinia |
jamesii |
A |
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Boykinia |
major |
! L |
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Boykinia |
occidentalis |
B |
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Boykinia |
rotundifolia |
B |
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Brassica |
all species |
A |
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Brassica |
jordanovii |
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Braya |
alpina |
A 3 7 * |
soak in hot water |
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Brimeura |
amethystina |
H |
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Brimeura |
amethystina 'Alba' |
H |
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Brodiaea |
elegans |
! A |
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Brodiaea |
pulchella |
F |
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Browallia |
sp. |
A 3 |
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Bruckenthalia |
spiculifolia |
A |
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Brugmansia |
sp. |
A |
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Brunnera |
macrophylla |
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Bryonia |
alba |
G |
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Bryonia |
dioica |
G |
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Buddleja |
davidii |
A 3 |
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Buddleja |
davidii 'Black Knight' |
A 3 |
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Bulbine |
frutescens |
A |
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Bulbine |
caulescens |
A |
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Bulbine |
semibarbata |
A 2 |
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Bulbocodium |
vernum |
! D * |
grow @ 4 deg C until true leaf well established |
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Bunias |
orientalis |
A |
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Bupleurum |
griffithii |
J 3 |
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Bupleurum |
longifolium |
! D |
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Bupleurum |
ranunculoides |
A 2 |
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Bupleurum |
rotundifolium |
! A 2 |
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Bupleurum |
rotundifolium 'Green Gold' |
! A 2 |
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Bupleurum |
sp. |
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Burchardia |
umbellata |
A |
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