Onopordum nervosum

Germination Tips

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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

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This species needs special care as described.
Special Care: 
squeeze seeds to determine which are viable, 15% germination rate
Most of the seeds in our Germination Guide have been offered from time to time in our annual Seed Exchange (Seedex).