Erysimum capitatum
Genus Erysimum
This source reports two treatments. Both are shown.
Protocol 1
DerivedN. C. Deno, 1993Difficulty Low Rated by us, not by the source.
Start around March 28, 2027 for a May 3 last frost.
- 1
Sow and cover
Temperature: 70°F 21°C · Light: either
No stated waiting before sowing. Then 8 days to germinate.
83% germination in 5–8 days.
Protocol 2
DerivedN. C. Deno, 1993Difficulty Moderate Rated by us, not by the source.
Start around November 24, 2026 for a May 3 last frost.
- 1
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C · Light: either
- 2
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C · Light: either
2/13 germinated in this phase.
Steps after step 1 run on after germination.
about 3 months from start to sowing. Then 42 days to germinate.
46% germination in 21–42 days.