Cestrum nocturnum
Genus Cestrum
This source reports three treatments. All are shown.
Protocol 1
DerivedN. C. Deno, 1996Difficulty Low Rated by us, not by the source.
Start around March 26, 2027 for a May 3 last frost.
- 1
Sow and cover
Temperature: 70°F 21°C · Light: light
No stated waiting before sowing. Then 10 days to germinate.
100% germination in 8–10 days.
Protocol 2
DerivedN. C. Deno, 1996Difficulty Moderate Rated by us, not by the source.
Start around June 22, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 21, 2026.
- 1
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C · Light: dark
12 germinated in this phase.
- 2
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
- 3
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C · Light: light
about 9 months from start to sowing. Then 18 days to germinate.
88% germination in 6–18 days.
Protocol 3
DerivedN. C. Deno, 1996Difficulty High Rated by us, not by the source.
Start around November 24, 2026 for a May 3 last frost.
- 1
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C · Light: dark
- 2
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
- 3
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C · Light: dark
Steps after step 1 run on after germination.
about 3 months from start to sowing. Then 42 days to germinate.
12% germination in 7–42 days.