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Find Your USDA Hardiness Zone
Enter your ZIP code to look up your USDA Plant Hardiness Zone — the average annual minimum winter temperature that determines which perennials, shrubs, and trees will survive winter in your garden.
Zone data is drawn from the same GIS dataset behind the 2023 USDA Plant Hardiness Zone Map (USDA Agricultural Research Service), produced by the PRISM Climate Group at Oregon State University under a cooperative agreement with USDA-ARS.
This is an independent, unofficial lookup tool — not the official USDA Plant Hardiness Zone Map. For the definitive zone at your exact address, or to explore the full interactive map, visit planthardiness.ars.usda.gov.