A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual ...
3don MSN
However, average minimum temperatures vary widely from south to north Wisconsin, meaning plants that may do well in Milwaukee ...
A hardiness zone is a geographic area with a similar average minimum temperature. The map is ... that kind of plant needs at least 40 degrees yearly. The USDA divides the United States into ...
The USDA bases its plant zone maps on average minimum temperature so people in each zone know which plants can best withstand their local weather. For example, a tropical plant that needs 40 ...
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