Cyclamen hederifolium
Genus Cyclamen
This source reports two treatments. Both are shown.
Protocol 1
DerivedN. C. Deno, 1993Difficulty Moderate Rated by us, not by the source.
Start around December 14, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on December 13, 2025.
- 1
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
- 2
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C
- 3
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
- 4
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C
- 5
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
about 15 months from start to sowing. Then 28 days to germinate.
90% germination in 28 days.
Protocol 2
DerivedN. C. Deno, 1993Difficulty High Rated by us, not by the source.
Start around March 7, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 6, 2026.
- 1
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C
- 2
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
25 germinated in this phase.
- 3
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C
- 4
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
about 12 months from start to sowing. Then 35 days to germinate.
50% germination in 35 days.