Hardiness: -15°C
Sowing: Stratify at 20°C for 4 months and stratify at 3°C/5°C for 4 months then sow in spring.
Hardiness: -15°C
Sowing: Stratify at 20°C for 4 months and stratify at 3°C/5°C for 4 months then sow in spring.