Usda Plant Hardiness Zone Map 2025 Usda

Usda Plant Hardiness Zone Map 2025 Usda. Plant hardiness zones are a classification system created by the usda to divide north america into 13 zones based on. The usda developed it with the prism climate group at oregon state university.

Usda’s plant hardiness zone map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. Usda released a new version of its plant hardiness zone map (phzm), updating this valuable tool for gardeners and researchers for the first time since 2012.