Plant Hardiness Zones 2024. There's a good chance your zone shifted when the usda updated its plant hardiness map in 2023. The usda plant hardiness zone map is the standard by which gardeners and growers can determine which perennial plants are most likely to thrive at a location.

It shows an overall increase in average. Plant hardiness is the ability of a plant to survive adverse growing climates such as drought, flooding, heat and cold.