USDA Agricultural Research Service, Oregon State University 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. This website includes information for growers, the new 2023 interactive GIS-based map, downloadable maps, previous versions and maps showing the shifts in zones since 2012, and more.
2023 USDA Plant Hardiness Zone Map
