USDA Plant Hardiness Zone Map
馃嚭馃嚫 United States 路 USDA Agricultural Research Service
Free zip-code lookup of your cold-hardiness zone so you choose trees that will survive your winters
The 2023 USDA Plant Hardiness Zone Map is the standard reference for which perennial plants and trees are likely to survive at a location, based on average annual extreme minimum temperature in 10-degree F zones and 5-degree half zones. Enter a zip code in the interactive map or download state and regional maps.
Who qualifies
Anyone; no sign-up.
How to apply
Visit planthardiness.ars.usda.gov and enter your zip code in the Quick Zip Code Search, or download a printable map. Questions go to phzminfo@usda.gov.
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