Usda Hardiness Zones 2025 Map. Here is how you can use the new usda zone map for your garden and how to know, if in the new version,. Released in november 2023, the updated map was developed by oregon state university’s prism climate group and the usda’s agricultural research service.
Assessing potential climate change pressures across the conterminous united states: 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.