ONTARIO ROCK GARDEN SOCIETY

Germination guide

Genus

Species

Germination

Remarks

Cleome

obliqua

.

.

Cleome

sp.

Clethra

acuminata

A *

mist, grow in plastic bag

Clethra

alnifolia

G 3

.

Clianthus

formosus

A 2 6 7

Clintonia

borealis

L 8

Clintonia

uniflora

L

Cnidium

dubium

A 3

Codonopsis

butanica

B 3

Codonopsis

cardiophylla

F *

poor germination

Codonopsis

clematidea

A

.

Codonopsis

lanceolata

B 3

Codonopsis

ornata

.

Codonopsis

ovata

A

Codonopsis

pilosula

A

Codonopsis

sp.

A

Codonopsis

tangshen

B 3

Codonopsis

ussuriensis

A

Colchicum

arenarium

! K 7 *

grow seedlings @ 4 deg C x 1m

Colchicum

sp.

! L

.

Collomia

grandiflora

F

Coluteocarpus

vesicaria ssp. vesicaria

A 2

Commelina

coelestis

A 2

Commelina

dianthifolia

A

Compositae

sp.

.

Comptonia

peregrina

! A 6 7 *

peat based compost

Conoclinium

coelestinum

J

.

Consolida

ajacis

A N 1

Consolida

ambigua

A N 1

Consolida

sp.

A

Convallaria

majalis

A 2 8

Convallaria

majalis 'Albostriata' or 'Variegata'

A 2 8

Convolvulus

assyricus

.

Coptis

trifolia ssp.groenlandica ( same as C. groenlandica)

K *

prechill 4 wks, peat based medium

Coptis

groenlandica

K *

ditto