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.

Find it using your zip code:

Hardiness Zone Map for USDA

Users in Canada

Canada's Natural Resources map and database

Users in Europe

Hardiness Zone Map for 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
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