Usda Plant Hardiness Zone Map 2024. Introducing a new hardiness zone map. The new map—jointly developed by usda's agricultural research service (ars) and oregon state university's (osu) prism climate group—is more accurate and contains greater detail.

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. This image from the u.s.