Trillium erectum v. album

Germination Tips

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Sow immediately. The viability of these seeds is short or the species propagates best with fresh seed. Stored seed might be coaxed into germination with temperature cycling and patience.

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This species needs special care as described.

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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: 
Seeds must be stored cold and moist. Germination is unlikely after storage >6 months. If seeds are received dry, try hydrating in damp paper towel @ 20°C for 1 week. During 3 months @ 20° a radicle is formed. Then 4°C for at least 86 days will trigger emergence of a cotyledon which will appear as the temperature increases in spring. No more leaves are formed that year. If sown early enough, a cotyledon may emerge first spring but usually not until second spring. Keep seeds in pots for 2 years
Most of the seeds in our Germination Guide have been offered from time to time in our annual Seed Exchange (Seedex).