Eastern Europe, Southern Europe, Russia/Siberia, Southern Asia, Western Asia
Southeastern United States, North-Central United States, Central United States, South-Central United States, Southwestern United States, Texas, Canada, Mexico
Cold Regions, gardens
Dry areas, Prairies, Rocky areas, rocky outcrops
6, 7, 8, 9, 10, 14, 15, 16
A1, A2, A3, H1, H2, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24