USDA Hardiness Zones
The USDA Plant Hardiness Zone Map divides the US into 26 half-zones based on the average annual extreme minimum temperature. Pick yours below, or use the ZIP lookup on the home page if you don't know your zone yet.
- Zone 1a-60 to -55 °F
- Zone 1b-55 to -50 °F
- Zone 2a-50 to -45 °F
- Zone 2b-45 to -40 °F
- Zone 3a-40 to -35 °F
- Zone 3b-35 to -30 °F
- Zone 4a-30 to -25 °F
- Zone 4b-25 to -20 °F
- Zone 5a-20 to -15 °F
- Zone 5b-15 to -10 °F
- Zone 6a-10 to -5 °F
- Zone 6b-5 to 0 °F
- Zone 7a0 to 5 °F
- Zone 7b5 to 10 °F
- Zone 8a10 to 15 °F
- Zone 8b15 to 20 °F
- Zone 9a20 to 25 °F
- Zone 9b25 to 30 °F
- Zone 10a30 to 35 °F
- Zone 10b35 to 40 °F
- Zone 11a40 to 45 °F
- Zone 11b45 to 50 °F
- Zone 12a50 to 55 °F
- Zone 12b55 to 60 °F
- Zone 13a60 to 65 °F
- Zone 13b65 to 70 °F