Gardeners and farmers across the U.S. look to plant hardiness zones for guidance on which plants to grow. The U.S. is divided into 13 plant hardiness zones based on the local coldest temperature of ...

The USDA’s Plant Hardiness Zone Map divides the country into 13 zones ranging from 1 (the arctic) to 13 (the tropics) to make it easier for gardeners to select plants that can survive the winter in ...