Zones · Map

Zone map

Official hardiness zones for the United States (USDA, 2023) and Canada (Natural Resources Canada), on one map. Click anywhere for the zone, the ecological region and a link to this week's local guide. White dots are popular areas with ready-made guides.

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Zone polygons: USDA Agricultural Research Service / Oregon State University PRISM Climate Group (2023) and Natural Resources Canada (Open Government Licence – Canada), simplified for the web. The zone shown in each local guide is a separate estimate from ten years of climate data and can differ by a half-zone.