A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual ...
According to the new map released in November 2023 ... there's some very important information you must know: The USDA just ...
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However, average minimum temperatures vary widely from south to north Wisconsin, meaning plants that may do well in Milwaukee ...
The USDA divides the United States into seven planting regions, known as hardiness zones, which were most recently updated in 2023. The maps below show these planting regions.
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