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.
Map Downloads | USDA Plant Hardiness Zone Map
This page allows you to find and download state, regional, and national Plant Hardiness Zone Maps at various resolutions. Click on the map below to download state/territory maps or scroll down to find regional and national maps for download.
How to Use the Maps | USDA Plant Hardiness Zone Map
The Plant Hardiness Zone Map (PHZM) is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones ranging from zone 1 (coldest) to zone 13 (warmest). Each zone is divided into half zones designated as ‘a’ and ‘b’.
Map Creation | USDA Plant Hardiness Zone Map
This edition of the USDA Plant Hardiness Zone Map (PHZM) is GIS (Geographic Information System)-based and is specifically designed for the Internet. It enables viewers to examine plant hardiness zones at a much finer scale than 1990 and earlier maps.
2023 USDA Plant Hardiness Zone Map | USDA Plant Hardiness …
The 2023 USDA Plant Hardiness Zone Map helps gardeners determine which plants are most likely to thrive based on average annual minimum winter temperatures.