Europe, Northern Europe, Western Europe, Asia, Central Asia, Western Asia
Central Asia, India, Nepal, China, Japan, Korea
Clay soil areas, Loamy soils, Sandy areas, sandy seeps, Well Drained
Dappled Shade, Sunny Edge, Woodland Garden Secondary
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17