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ONTARIO ROCK GARDEN SOCIETY |
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Germination guide P5 |
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Genus |
Species |
Germination |
Remarks |
|
Proboscidea |
louisianica |
A |
. |
|
Prunella |
grandiflora |
B |
|
|
Prunella |
grandiflora 'Alba' |
B |
|
|
Prunella |
vulgaris |
A |
|
|
Prunella |
x pinnatifida |
. |
|
|
Prunus |
maackii |
C 8 * |
protect from rodents |
|
Prunus |
tomentosa |
L 8 |
. |
|
Prunus |
virginiana v. demissa |
H 8 * |
scarify with concentrated sulphuric acid CAUTION:THIS CAN BE A DANGEROUS PROCEDURE |
|
Pseudomertensia |
racemosa |
. |
. |
|
Ptelea |
trifoliata |
H |
|
|
Ptelea |
trifoliata v. mollis |
L |
|
|
Pterocarya |
stenoptera |
G 7 |
|
|
Pterocephalus |
perennis |
A |
|
|
Pterocephalus |
spathulatus |
. |
|
|
Pterostyrax |
hispida |
G |
|
|
Ptilostemon |
afer |
A |
|
|
Ptilotrichum |
all species |
A |
|
|
Ptilotrichum |
macrocarpum |
A |
|
|
Pulmonaria |
officinalis |
E |
|
|
Pulmonaria |
saccharata |
E |
|
|
Pulsatilla |
tatewakii |
. |
|
|
Pulsatilla |
'Joseph' |
! ? 9 |
|
|
Pulsatilla |
albana |
! D 9 |
|
|
Pulsatilla |
albana 'Lutea' |
! D 9 |
|
|
Pulsatilla |
alpina |
! G 9 |
|
|
Pulsatilla |
alpina 'Budapest' |
! G 9 |
|
|
Pulsatilla |
alpina ssp. albiflora |
! G 9 |
|
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Pulsatilla |
alpina ssp. alpina |
! G 9 |
|
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Pulsatilla |
alpina ssp. apiifolia |
! G 9 |
|
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Pulsatilla |
altaica |
! ? 9 |
|
|
Pulsatilla |
ambigua |
! L 9 |
|
|
Pulsatilla |
bungeana |
! L 9 |
|
|
Pulsatilla |
campanella |
! A |
|
|
Pulsatilla |
campanulata |
! ? 9 |
|
|
Pulsatilla |
drummondii |
. |
|
|
Pulsatilla |
fimbriata |
! L |
|
|
Pulsatilla |
flavescens |
! ? 9 |
|
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Pulsatilla |
georgica |
. |
|
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Pulsatilla |
glauica |
||
|
Pulsatilla |
grandiflora fimbriate |
J |
|
|
Pulsatilla |
halleri |
! A |
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Pulsatilla |
halleri ssp. slavica |
! A |
|
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Pulsatilla |
montana |
! A |
|
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Pulsatilla |
nigricans ssp. bohemica |
. |
|
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Pulsatilla |
occidentalis |
! L 9 |
|
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Pulsatilla |
oenipantana |
. |
|
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Pulsatilla |
patens |
! A |
|
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Pulsatilla |
patens ssp. flavescens |
! A |
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Pulsatilla |
patens ssp. multifida |
! A |
|
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Pulsatilla |
patens ssp. trisecta |
! A |
|
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Pulsatilla |
pratensis ssp. bohemica |
! L 9 |
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Pulsatilla |
pratensis ssp. nigricans |
! L 9 |
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Pulsatilla |
serotina |
! E |
|
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Pulsatilla |
slavica x grandis |
! A |
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Pulsatilla |
sp. |
! L 9 |
|
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Pulsatilla |
sukaczewii |
. |
|
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Pulsatilla |
turczaninovii |
! A 2 9 |
|
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Pulsatilla |
vernalis |
! A 2 9 |
|
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Pulsatilla |
vulgaris |
! A 2 9 |
|
|
Pulsatilla |
vulgaris 'Barton's Pink' |
! A 2 9 |
|
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Pulsatilla |
vulgaris 'Dissecta' |
! A 2 9 |
|
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Pulsatilla |
vulgaris 'Grandiflora Fimbriate' |
! A 2 9 |
|
|
Pulsatilla |
vulgaris 'Papageno' |
! A 2 9 |
|
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Pulsatilla |
vulgaris alba |
! A 2 9 |
|
|
Pulsatilla |
vulgaris f. slavica rubra |
! A 2 9 |
|
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Pulsatilla |
vulgaris fimbriata |
! A 2 9 |
|
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Pulsatilla |
vulgaris ssp. gotlandica |
! A 2 9 |
|
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Pulsatilla |
vulgaris ssp. grandis |
! A 2 9 |
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Pycnanthemum |
pilosum |
A |
|
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Pycnanthemum |
virginianum |
G |
|
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Pyrola |
minor |
* |
difficult, germinates infrequently, try ! L and plant in soil from established plant, pour boiling water over milled sphagnum moss, sow seed , enclose in plastic bag |
|
Pyrola |
rotundifolia |
* |
ditto |
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Pyrrosia |
serpens |
. |
. |