USDA Hardiness Zone Finder

The USDA Plant Hardiness Zone Map serves as the standard for gardeners and growers to identify perennial plants suitable for a specific location. It classifies zones based on the average annual extreme minimum winter temperature in 10-degree F zones and 5-degree F half zones. For quick zone location, enter your zip code in the Quick Zip Code Search box on the map or click anywhere on the map for an interactive view. A broadband internet connection is recommended for the interactive GIS-based map above.The USDA Plant Hardiness Zone Map serves as the standard for gardeners and growers to identify perennial plants suitable for a specific location. It classifies zones based on the average annual extreme minimum winter temperature in 10-degree F zones and 5-degree F half zones. For quick zone location, enter your zip code in the Quick Zip Code Search box above the map.