Usda Plant Hardiness Zone Map 2024 Calendar. Note that in the new map, our garden and those nearest to it now appears in a slightly cooler half zone. The usda plant hardiness zone map helps gardeners and growers determine which plants are most likely to thrive in their region.

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. Each growing zone is 10°f warmer (or colder) in an average winter than the adjacent.