Garden Zone Map 2024. The updated maps were released on. Gardeners and horticulturists use the plant hardiness zone map to help them figure out what they can plant.
This map is a useful tool for gardeners to figure out which species are most likely to thrive at a particular location. 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 than prior versions.