Usda Plant Hardiness Zone Map 2024 Pdf. How to know which zone you live in. For example, seattle, washington, and the city of austin, texas, are both in the usda hardiness zone 9a because the map is a measure of the coldest temperature a plant can handle.

Simply enter your zip code into our zone map and presto! For example, seattle, washington, and the city of austin, texas, are both in the usda hardiness zone 9a because the map is a measure of the coldest temperature a plant can handle.