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The USDA's gardening zones shifted, this map shows you what's changed

There's a good chance your zone shifted when the USDA updated its plant hardiness map in 2023. Zoom in on what that means for your garden.

If extreme, out-of-zone weather occurs during a quick cold snap, steps can be taken to protect your plants with temporary blankets or other shelters. 3 The hardiness map can’t tell you if your plants will survive thesummer Summer temperature extremes matter a great deal but are not reflected in the USDA hardinessmap. In 1997, the American Horticultural Society released a heat zone map that measured the average number of times per year that the temperature of an area exceeds 86ºF.

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