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A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual ...

However, average minimum temperatures vary widely from south to north Wisconsin, meaning plants that may do well in Milwaukee ...

known as hardiness zones, which were most recently updated in 2023. The maps below show these planting regions. The USDA Plant Hardiness Zone Map for the Southeast US ...

Plant hardiness zones in Wisconsin range from 6a ... which is an average minimum of -30 to -35 degrees. You can use the USDA's interactive map to find the plant hardiness in your Wisconsin ...