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  1. USDA Unveils Updated Plant Hardiness Zone Map

    2023年11月15日 · The new map, based on 30-year averages of the lowest annual winter temperatures, is more accurate and detailed than the 2012 version. It is available online at https://planthardiness.ars.usda.gov/ and includes tips …

  2. Map Downloads | USDA Plant Hardiness Zone Map

  3. USDA Plant Hardiness Zone Map - The Old Farmer's Almanac

  4. Plant Hardiness Zone Map - United States National Arboretum

  5. The USDA’s gardening zones shifted. - NPR

    2024年5月13日 · Explore how the USDA's gardening zones shifted due to warming temperatures and improved data quality. Find out what your zone means for plant survival and what other factors to consider for your garden.

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  7. Map Creation | USDA Plant Hardiness Zone Map

  8. New USDA Plant Hardiness Zone Map and Adapting to the Changes

  9. PRISM Climate Group at Oregon State University

    The USDA Plant Hardiness Zone Map (PHZM) is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The most recent revision was prepared by the PRISM Climate Group …

  10. USDA Plants Database

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