Showing the USDA hardiness zones in the U.S., Canada and Mexico.
Key Zone 1 = Zone 2a = 2b = Zone 3a = 3b = Zone 4a = 4b = Zone 5a = 5b = Zone 6a = 6b = Zone 7a = 7b = Zone 8a = 8b = Zone 9a = 9b = Zone 10a = 10b =
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