Sometimes called “growing zones” or “gardening zones,” USDA plant hardiness zones refer to areas of a map developed by the ...

Knowing when to plant in specific hardiness zones is important to maximize the spring season's potential. A hardiness zone is a geographic area with a similar average minimum temperature.

Here's which planting region Wisconsin falls in and how to look up the plant hardiness in your zip code. Trouble seeing the map? Click here to view the planting zones for the North Central U.S ...

The U.S. Department of Agriculture (USDA) has a Plant Hardiness ... with the coldest zone being one and warmest being 13. Louisiana's growing zones range from 8b in North Louisiana to 10a at ...