ONTARIO ROCK GARDEN SOCIETY

Germination guide T1

Genus

Species

Germination

Remarks

Tagetes

gem series?

A

Talinum

calycinum

H

Talinum

paniculatum

L

Talinum

rugospermum

F

Talinum

sediforme

Talinum

spinescens

H

Talinum

teretifolium

A 3

Tanacetum

huronense v. terra-novae

! B

20L-4-20D

Tanacetum

macrophyllum

! B

Tanacetum

niveum

! B

Tanacetum

parthenium 'Aureum'

! A

Tanacetum

huronense

! B *

20L-4-20D

Taraxacum

albidum

K

Taraxacum

carneocoloratum

Taraxacum

pumilum

Telekia

speciosa

A

Telephium

imperati

! A N

Tellima

grandiflora

A 3

Telopea

speciosissima

A

Tephroseris

flammea

D 2

Tephrosia

virginiana

A 6 7

Tetraneuris

acaulis

! L

Teucrium

canadense

B

Teucrium

chamaedrys

F

Teucrium

flavum glaucum

B

Teucrium

flavum grandiflorum

B

Teucrium

halacsyanum

Teucrium

rotundifolium

A

Teucrium

scorodonia

B

Teucrium

subspinosum

G

Teucrium

webbianum

Thalictrum

actaeifolium

K

Thalictrum

alpinum

A

Thalictrum

aquilegiifolium

A

Thalictrum

aquilegiifolium v. album

A

Thalictrum

baicalense

Thalictrum

chelidonii

B

Thalictrum

delavayi

A

Thalictrum

dipterocarpum

B

Thalictrum

flavum

B

Thalictrum

flavum ssp. glaucum

B

Thalictrum

isopyroides

Thalictrum

minus

B

Thalictrum

most species

A 5

Thalictrum

polygamum

!

Thalictrum

rochebruneanum

L 4

Thalictrum

simplex ssp. galioides

A 3

Thalictrum

sp.

B

Thalictrum

speciosissimum

F

Thermopsis

barbata

A

Thermopsis

caroliniana

! A 1 6 7 *

tiny seed should be scarified with sandpaper

Thermopsis

lanceolata

! A 1 6 7 *

Thermopsis

lupinoides

A 1 6 7 *

pot deeply, protect from damping off

Thermopsis

molliis

1 6 7 *

Thermopsis

smithii

Thermopsis

villosa

A 1 6 7 *

pot deeply, protect from damping off

Thlaspi

all species

A

Thlaspi

alpinum

A

Thlaspi

bellidifolium

A

Thlaspi

bulbosum

A

Thlaspi

montanum

A

Thlaspi

praecox

F

Thlaspi

rotundifolium

A

Thlaspi

sp.

A

Thlaspi

stylosum

A

Thuja

koraiensis

J

Thuja

occidentalis

A 2

Thymophylla

tenuiloba

K

Thymus

comosus

A

Thymus

necefferi

Thymus

serpyllum

A

Thymus

serpyllum v. albus

A

Thymus

tiflisiensis

Thysanotus

multiflorus

Tiarella

'Cygnet'

Tiarella

'Iron Butterfly'

! A

Tiarella

Spanish Cross'

! A

Tiarella

Spring Symphony'

! A

Tiarella

cordifolia

! A 3

seed destroyed by dry storage for 6 m

Tiarella

cordifolia 'Dunvegan'

! A 3

ditto

Tiarella

polyphylla

! E

Tiarella

trifoliata v. trifoliata

K

Tiarella

unifoliata

K

Tiarella

wherryi

! D 3 *

20D-4-20L

Tibouchina

sp.

try A 3

Tigridia

pavonia

K

Titanopsis

calcarea

A

Tithonia

rotundifolia

A 3

Tithonia

sp.

A

Tofieldia

glutinosa

B

Tolmiea

menziesii

B

Tonestus

lyallii

Townsendia

condensata

A

Townsendia

eximia

A

Townsendia

eximia x grandiflora

A

Townsendia

exscapa

A

Townsendia

formosa

A

Townsendia

grandiflora

A

Townsendia

hookeri

A

Townsendia

parryi

A

Townsendia

rothrockii

A

Townsendia

sp.

A

Trachelium

caeruleum

A 3

Trachelium

jacquinii

Tragopogon

turkestanicus

Tricyrtis

bakeri

A 3

Tricyrtis

hirta

E 3

Tricyrtis

latifolia

E 3

Tricyrtis

macropoda

D

Tricyrtis

puberula

A 3

Tricyrtis

sp.

! L 3

Trientalis

borealis

A N

Trifolium

repens

A 2 6

Trifolium

rubens

F

Trillium

all species

! L *

sow immediately outdoors, short has limited viability, will germinate in spring of next or subsequent years, store seed cold and moist, seedlings must be grown at cool temp - best accomplished by sowing in open ground

Trillium

cernuum

! *

seed stored more than 6m is non-viable, hydrate seeds in damp paper towel @ 20deg C for 1w, remo

Trillium

erectum

! L 4 *

ditto

Trillium

erectum v. album

! L 4 *

ditto

Trillium

grandiflorum

! A 4 *

ditto

Trillium

luteum

! 4 *

ditto

Trillium

recurvatum

! L *

ditto

Trillium

simile

! L *

ditto

Trillium

undulatum

! A 2 4 *

ditto

Triosteum

aurantiacum

Tripetaleia

bracteata

Tripetaleia

paniculata

A 3

Tripleurospermum

caucasicum

K

Tripleurospermum

oreades v. tchihatchewii

Tripterygium

regelii

A

Triteleia

grandiflora

Triteleia

hyacinthina

L

Triteleia

ixioides

! A

Tritonia

sp.

! A

Trollius

acaulis

G

Trollius

altaicus

! E

Trollius

chinensis

! F

Trollius

chinensis (syn. ledebouriana)

! F

Trollius

europeus

E

Trollius

hondoensis

G

Trollius

laxus

! L

Trollius

pumilus

A

Trollius

sp.

G

Trollius

x cultorum 'Cheddar'

H

Trollius

x cultorum 'Lemon Princess'

! L

Tropaeolum

incisum

Tropaeolum

peregrinum

A

Tuberaria

guttata

A

Tulbaghia

simmleri

Tulipa

'Addis'

L *

grow seedlings at a cool temp - best achieved by sowing in open ground

Tulipa

'Batalinii gem'

L *

ditto

Tulipa

'Fashion'

L *

ditto

Tulipa

'Guiseppe Verdi'

L *

ditto

Tulipa

'Plaisir'

L *

ditto

Tulipa

'Sweet Lady'

L *

ditto

Tulipa

Ancilla'

L *

ditto

Tulipa

Heart's Delight'

L *

ditto

Tulipa

biflora

L *

ditto

Tulipa

clusiana 'Cynthia'

C *

ditto

Tulipa

clusiana v. chrysantha

C *

ditto

Tulipa

dasystemon

L *

ditto

Tulipa

hageri 'Little Beauty'

L *

ditto

Tulipa

humilis v. pulchella (syn. T. pulchella)

L *

ditto

Tulipa

neustruevae

L *

ditto

Tulipa

saxatilis Bakeri Group

L *

ditto

Tulipa

sp.

L *

ditto

Tulipa

sp. mix

L *

ditto

Tulipa

sylvestris

L *

ditto

Tulipa

tarda

D *

ditto

Tulipa

turkestanica

C *

ditto

Tulipa

urumiensis

L *

ditto

Tunica

saxifraga

A

Tweedia

caerulea

A

Typha

minima

A *

stand pot in 3cm of water