2023 USDA Plant Hardiness Zone Map

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. The map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones and 5-degree F half zones. A broadband internet connection is recommended for the interactive GIS-based map above.

2023 USDA Plant Hardiness Zone Map showing different climate zones across the United States, including Alaska, Hawaii, and Puerto Rico. Zones are color-coded based on average annual extreme minimum temperatures, with the legend indicating temperature ranges from below -60°F to above 70°F.