Find Your Zone
The "zone" refers to the U.S. Department of Agriculture's hardiness zones which are based on an area's average annual minimum temperature.
How to find your zone:
Users in the U.S.
Users in Canada
Users in Europe
Other Users
The USDA hardiness zones are based on the average minimum temperature that occurs in an area. Even if you do not live in the U.S., you can come up with an approximate zone using this chart.
Hardiness Zone Chart:
Annual Minimum Temperature | ||
---|---|---|
Zone | Farenheit | Centigrade |
1 | below -50 F | below -45.6 C |
2a | -50/-45 F | -42.8/-45.5 C |
2b | -45/-40 F | -42.7/-40.0 C |
3a | -40/-35 F | -40.0/-37.3 C |
3b | -35/-30 F | -37.2/-34.5 C |
4a | -30/-25 F | -34.4/-31.7 C |
4b | -25/-20 F | -31.6/-28.9 C |
5a | -20/-15 F | -28.8/-26.2 C |
5b | -15/-10 F | -26.1/-23.4 C |
6a | -10/- 5 F | -23.3/-20.6 C |
6b | - 5/ 0 F | -20.5/-17.8 C |
7a | 0/+ 5 F | -17.7/-15.0 C |
7b | + 5/+10 F | -15.0/-12.3 C |
8a | +10/+15 F | -12.2/-9.5 C |
8b | +15/+20 F | -9.4/-6.7 C |
9a | +20/+25 F | -6.6/-3.9 C |
9b | +25/+30 F | -3.8/-1.2 C |
10a | +30/+35 F | -1.1/+1.6 C |
10b | +35/+40 F | +1.7/+4.4 C |
11 | above +40 F | above +4.5 C |