Colchicum autumnale

Germination Tips

7

Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard floaters and the water used for soaking. See https://youtu.be/dhL57pqnHHQ

L

Give sown seeds several weeks @ 20°C to imbibe water (perhaps even germinate!), then expose to fluctuating outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in spring. See https://www.youtube.com/watch?v=SO_KKbGYTEM

Special Care: 
must have summer heat to germinate; may take 6 years to germinate; grow seedlings @ 4°C x 1 month
Most of the seeds in our Germination Guide have been offered from time to time in our annual Seed Exchange (Seedex).