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ONTARIO ROCK GARDEN SOCIETY |
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Germination guide S4 |
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Genus |
Species |
Germination |
Remarks |
|
Silphium |
integrifolium |
G |
. |
|
Silphium |
perfoliatum |
G |
|
|
Silphium |
trifoliatum |
J |
|
|
Silybum |
marianum |
A N |
|
|
Silybum |
sp. |
A |
|
|
Sisymbrium |
luteum |
A |
|
|
Sisyrinchium |
angustifolium |
A 3 |
|
|
Sisyrinchium |
californicum |
B |
|
|
Sisyrinchium |
douglasii |
B |
|
|
Sisyrinchium |
graminoides |
A |
|
|
Sisyrinchium |
idahoense |
F |
|
|
Sisyrinchium |
idahoense v. idahoense |
F |
|
|
Sisyrinchium |
macropeda |
. |
|
|
Sisyrinchium |
montanum |
B |
|
|
Sisyrinchium |
sp. |
L |
|
|
Sisyrinchium |
striatum |
B |
|
|
Sium |
suave |
K |
|
|
Smilacina |
racemosa |
G * |
place in moist sand in shade x 1y, sow as soon as radicle appears |
|
Smilax |
herbacea |
H |
|
|
Smilax |
rotundifolia |
A |
|
|
Solanum |
sisymbriifolium |
A |
|
|
Soldanella |
alpina |
! J |
|
|
Soldanella |
carpatica |
! A 2 |
|
|
Soldanella |
carpatica x montana |
! A 2 |
|
|
Soldanella |
hungarica |
! A |
|
|
Soldanella |
minima 'Alba' |
! |
|
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Soldanella |
montana |
! A |
|
|
Soldanella |
sp. |
! G |
|
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Soldanella |
villosa |
! A |
|
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Solidago |
cutleri |
A |
|
|
Solidago |
lapponica |
. |
|
|
Solidago |
multiradiata |
A |
|
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Solidago |
rigida |
A |
|
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Solidago |
sempervirens |
A |
|
|
Solidago |
sp. |
. |
|
|
Solidago |
spathulata |
A |
|
|
Solidago |
speciosa |
A |
|
|
Solidago |
virgaurea |
A |
|
|
Solidago |
virgaurea ssp. virgaurea |
A |
|
|
Sophora |
japonica |
! A 6 |
|
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Sorbus |
americana |
G 2 |
|
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Sorbus |
koehneana |
L |
|
|
Sorbus |
pseudovilmorinii |
. |
|
|
Sorbus |
sp. |
L |
|
|
Sorghastrum |
avenaceum |
A |
|
|
Sorghastrum |
nutans |
G |
|
|
Sparganium |
hyderrorreum |
. |
|
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Spigelia |
capensis |
||
|
Spigelia |
marilandica |
J |
poor germination |
|
Spilanthes |
oleracea |
A 2 |
. |
|
Spiraea |
Bridal Wreath' |
. |
|
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Spiraea |
japonica 'Goldflame' |
A 3 |
|
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Stachys |
bicolor |
. |
|
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Stachys |
coccinea |
A |
|
|
Stachys |
discolor |
. |
|
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Stachys |
grandiflora |
A |
|
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Stachys |
macrantha |
L |
|
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Stachys |
macrantha 'Superba' |
L |
|
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Stachys |
monieri |
F |
|
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Stachys |
sylvatica |
A |
|
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Stellera |
chamaejasme v. chrysantha |
D |
|
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Stipa |
barbata |
H |
|
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Stipa |
caucasica |
. |
|
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Stipa |
tirsa ssp. caucasia |
||
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Stipa |
ucrainica |
F |
|
|
Stokesia |
laevis |
A |
|
|
Stokesia |
laevis 'Blue Danube' |
A |
|
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Stokesia |
laevis 'Klaus Jelitto' |
A |
|
|
Streptopus |
amplexifolius |
! L 8 |
|
|
Streptopus |
roseus |
D 2 8 |
|
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Stylidium |
graminifolium |
A 3 |
|
|
Stylophorum |
diphyllum |
! H * |
seed destroyed by dry storage for 6 m |
|
Stylophorum |
lasiocarpum |
D |
. |
|
Styrax |
japonica |
D |
|
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Styrax |
japonicus 'Roseus' |
D |
|
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Succisa |
inflexa |
A 3 |
|
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Succisa |
pratensis |
A 3 |
|
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Swertia |
schugnanica |
L |
|
|
Symphyandra |
hofmannii |
D |
|
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Symphyandra |
pendula |
A |
|
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Symphyandra |
pendula 'Alba" |
A |
|
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Symphyandra |
wanneri |
A |
|
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Symphyandra |
zanzegura |
A |
|
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Symphytum |
officinale |
B |
|
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Symphytum |
tuberosum |
B |
|
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Synthyris |
missurica |
L |
|
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Synthyris |
missurica v. magna |
L |
|
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Syringa |
reticulata |
L N |
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