Native Range: China,Bhutan, India, Nepal.
Hardiness Zone: USDA Zone 5b: to −23.3 °C
Soil: Prefers deep, rich, well-drained soils.
Moisture: Needs consistent moisture
Light: Light shade to shade
Flowering Period: July - August
Garden locations: Winter mulch. woodland garden or a sheltered border in semi-shade. Tubers should be planted about 30cm deep.
Price: 10 €