Usda Plant Hardiness Zone Map 2024 Usa. The usda hardiness zone map divides north america into 11 separate planting zones; It enables viewers to examine plant hardiness zones at a much finer scale than 1990 and earlier maps.
The plant hardiness zone map is based on the average lowest temperature a location receives sometime each winter. Everyone from gardeners and growers to scientists and crop insurance adjusters use these designations to make plant decisions every day.