Northeastern United States, Mid-Atlantic United States, Southeastern United States, North-Central United States, Central United States, South-Central United States, Canada
Russia/Siberia, Japan
Dappled Shade, Shady Edge, Woodland Garden
Alpine Meadows, Rocky areas
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19, 20, 21
3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17