{"slug":"us-usda-plant-hardiness-zone-map","name":"USDA Plant Hardiness Zone Map","provider":{"name":"USDA Agricultural Research Service","type":"federal"},"organization":null,"country":"US","region":null,"locality":null,"scope":"national","audience":["homeowner","renter","landowner","farmer","school"],"kind":"education","benefit":"Free zip-code lookup of your cold-hardiness zone so you choose trees that will survive your winters","summary":"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.","eligibility":"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.","url":"https://planthardiness.ars.usda.gov/","source_url":"https://planthardiness.ars.usda.gov/","season":null,"program_status":"active","lat":null,"lng":null,"data_note":null,"updated_at":"2026-11-08T00:02:20.743Z","page_url":"https://treerm.org/residents/programs/us-usda-plant-hardiness-zone-map","markdown_url":"https://treerm.org/residents/programs/us-usda-plant-hardiness-zone-map.md","license":"CC-BY-4.0"}