Us Hardiness Zone Map 2024 Pdf. 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. On the 2012 plant hardiness zone map, greater columbus (and a good portion of the rest of ohio) was in zone 6a, where the.
Changes to the ohio map. That doesn’t necessarily mean a huge change—you still aren’t going to be able to plant an.