Handbook of Plant and Crop Physiology

GERMINATION AND EMERGENCE 73

Stratify 20–25°C

6–10 wk, then1–5°C 6–8 wk

7–147–14 14–21 14–21 7–307–30 5–10 5–14 14–21 10–21 10–15 15–21 10–16

C. ptarmiciflorum

Dusty miller C. superbum

Shasta daisyChrysanthemumAsteraceae Chrysogonum virginianum

Golden asterAsteraceae Chrysopsis

sp.

Golden asterAsteraceae Cimicifuga simplex

Bugbane C. racemosa

SnakerootRanunculaceae Clarkia

spp.

Clarkia, GodetiaOnagaceae Cleome hasslerana

SpiderflowerCapparaceae Codonopsis clematidea

CodonopsisCampanulaceae Coleus

hybridus

ColeusLamiaceae Collinsia grandiflora

Blue lipsScrophulariaceae Consolida ambigua

LarkspurRanunculaceae Convolvulus tricolor

Dwarf morning gloryConvolvulaceae

P P P P P P A A P A A A A

15–1815–18 22–24 22–24

10 10 20–23 Day 28Night 2120–25 21–24 15–20 15–20 21–24

1010 12–15 21–24 10–15 16–18 10–15 13–16

21

D or L

L D or L D or L D or L

L L L D D or L

Plants self-sow. Can be directly sown to

garden in summer. Use fresh seed. Germination

is erratic. Difficult to transplant. Best

sown directly to garden orcontainer. Alternate day and night temp.

as noted Presow drench with fungicide

to prevent damping off. Difficult to transplant. Best

shown directly to garden orcontainer.

continues