North America, North-Central United States, Western United States, Canada
North America, Canada, Mexico, China
Cold Regions, gardens, Open areas
All sorts of environments
A1, A2, A3, 1a, 1b, 2a
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23