Native Range: China, Bhutan, India, Nepal, USDA.
Hardiness Zone: Zone 4a: to -34.4 °C
Soil: Prefers rich, humusy, well drained slightly acid to neutral soil.
Light: Partial shade, shade.
Flowering Period: May - June
Garden locations: Woodland gardens and moist shady borders. Native plant gardens.
Price: 5 €