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New USDA map reclassifies cold zones for Arizona, U.S. gardeners
Updated USDA Plant Hardiness Zone Map - O'Donal's Nursery
Climate change is shifting the zones where plants grow – here's
USDA Plant Hardiness Zone Map (2023 Update) * Big Blog of Gardening
US Plant Hardiness Zones. Axios: “Climate change is forcing…, by S. W. Lawrence, MD
New plant hardiness map, used by gardeners nationwide, is unveiled
Updated USDA hardiness zoning maps
USDA Plant Hardiness Map For New Mexico
Shifting Planting Zones
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