Hardiness: -15°C
Sowing: Hot stratification (20°C) for 2 months then cold stratification (3°C/5°C) for 5 months and sowing in spring.
Hardiness: -15°C
Sowing: Hot stratification (20°C) for 2 months then cold stratification (3°C/5°C) for 5 months and sowing in spring.