Triangle Nursery, Inc. {U.S.D.A. Plant Hardiness Zone Map}

USDA Plant Hardiness Zone Map You may determine which climatic zone you are in by checking this map. If the number in your zone is the same as, or smaller than, your zone numer, plants will be hardy for your locale.

Zone         Temperature
1                  Below -50
2                  -50 to -40
3                  -40 to -30
4                  -30 to -20
5                  -20 to -10
6                  -10 to -0
7                     0 to 10
8                   10 to 20
9                   20 to 30
10                 30 to 40
11                 above 40

Temperature Ratings
This map is to indicate the hardiness of all the material listed in our catalog.
However, this is only a guide, since the conditions for growing will very in certain areas.

Catalog