Gardening Zones Map 2025. Released in november 2025, the updated map was developed by oregon state university’s prism climate group and the usda’s agricultural research service. This map shows you what’s changed in vivid detail, and npr will show you your new.

The plant hardiness zones detailed in the new map define 13 distinct zones across the us and its territories. Recently, the usda updated its plant hardiness map for the first time in 11 years.