USDA Plant Hardiness Zone Map
This map shows 11 different zones, each of which represents an area of winter hardiness for the plants of agriculture and our natural landscape. The corresponding temperatures represent the lowest temperatures that can be expected each year.
North America | Northeast | Southeast | North Midwest | South Midwest | Northwest
Southwest | Alaska | Hawaii
| Zone |
°F |
| 1 |
< -50 |
| 2a |
-50 to -45 |
| 2b |
-45 to -40 |
| 3a |
-40 to -35 |
| 3b |
-35 to -30 |
| 4a |
-30 to -25 |
| 4b |
-25 to -20 |
| 5a |
-20 to -15 |
| 5b |
-15 to -10 |
| 6a |
-10 to -5 |
| 6b |
-5 to 0 |
| 7a |
0 to 5 |
| 7b |
5 to 10 |
| 8a |
10 to 15 |
| 8b |
15 to 20 |
| 9a |
20 to 25 |
| 9b |
25 to 30 |
| 10a |
30 to 35 |
| 10b |
35 to 40 |
| 11 |
> 40 |
|
