Usda Hardiness Zone Map. If you see a hardiness zone in a gardening catalog or plant description, chances are it refers to this USDA map. This will tell you what growing zone you are in.
Find your USDA zone using these state maps. Hardiness zones are based on the average annual minimum temperature in a given area. It is important to know what USDA Plant Hardiness Zone you are in.
This map was developed by the United States Department of Agriculture to help consumers best determine which horticultural species will perform best in their particular geographic region.
Most nurserymen agree that zone designations for plants are approximate.
Use this USDA Plant Hardiness Zones Map on Wilson Bros Gardens to ensure the plants you are planting in your garden or landscape are cold hardy in your area. Hardiness zones are based on the average annual minimum temperature in a given area. Find your planting zone with Gilmour today!