USDA Rose Hardiness Zone Map

Heirloom Roses has chosen the USDA Hardiness Zone Map because it is the one most gardeners rely on and one that is used for most national garden magazines, catalogs, books and many nurseries. Although it has a few drawbacks as in effects of snow cover, freeze-thaw cycles, or soil drainage during cold periods and does not account for the variety of different weather conditions within the same zone we feel it is a reliable source for zone information.

As a starting point to set a date for receiving roses, be sure it is just after your last frost in the spring or 10 weeks before your first frost in the fall, we have elected to use this Zone Map as a guide, realizing that the date can be adjusted.

View the USDA Hardiness Zone Map

U. S. Department of Agriculture.