Usda Plant Hardiness Zone Map 2024-2024. Usda's plant hardiness zone map was updated last fall as winters have warmed. Gardeners and growers rely on the usda plant hardiness zone map to determine which perennial plants are most likely to grow and thrive at their location.
The usda plant hardiness zone map is a guide that indicates the optimal range of survivability for perennial plants. And last week, the usda confirmed it by releasing an updated.