US zones
USDA hardiness zones, explained.
The USDA scale rates a plant by the coldest average winter temperature it survives, zone 1 (coldest) to 13 (warmest).
Browse by zone
USDA zone 3
38 plants
USDA zone 4
69 plants
USDA zone 5
113 plants
USDA zone 6
148 plants
USDA zone 7
192 plants
USDA zone 8
229 plants
USDA zone 9
335 plants
USDA zone 10
344 plants
USDA zone 11
309 plants
USDA zone 12
80 plants
3 zones in this system currently have too few matching plants to list on their own.
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