USDA Plant Hardiness
Zone Map
| Temperature (ºC) | ZONE | Temperature (ºF) |
|
-45.6 and Below |
1 |
-50 and Below |
| 40.0 to -45.5 | 2 | -40 to -50 |
| -34.5 to -40.0 | 3 | -30 to -40 |
| -28.9 to -34.4 | 4 | -20 to -30 |
| -23.4 to -28.5 | 5 | -10 to -20 |
| -17.8 to -23.3 | 6 | 0 to -10 |
| -12.3 to -17.7 | 7 | 10 to 0 |
| -8.7 to -12.2 | 8 | 20 to 10 |
| -1.2 to -5.5 | 9 | 30 to 20 |
| 4.5 to -1.1 | 10 | 40 to 30 |
| 4.5 and Above | 11 | 4.5 and Above |