Us Hardiness Zone Map 2024 Map. Usda’s plant hardiness zone map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. Mapping plant hardiness zones, heat zones, growing degree days, and cumulative drought severity throughout this century.

Assessing potential climate change pressures across the conterminous united states: Usda’s plant hardiness zone map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location.