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The USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which perennial plants are most likely to thrive at a location. The map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones and 5-degree F half zones.
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This page allows you to find and download state, regional,...
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Section 1: Map Explainer. Section 2: How to Use the Map....
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Nov 15, 2023 · The new map—jointly developed by USDA's Agricultural Research Service (ARS) and Oregon State University's (OSU) PRISM Climate Group—is more accurate and contains greater detail than prior versions. It is available online at https://planthardiness.ars.usda.gov/.
By Kim Kaplan. January 25, 2012. WASHINGTON—The U.S. Department of Agriculture (USDA) today released the new version of its Plant Hardiness Zone Map (PHZM), updating a useful tool for gardeners and researchers for the first time since 1990 with greater accuracy and detail. The new map—jointly developed by USDA's Agricultural Research ...
Map Downloads | USDA Plant Hardiness Zone Map. The Plant Hardiness Zone Map is available in a number of sizes and resolutions to meet the needs of graphic artists, printers, and others needing higher resolution or simpler formats. National, regional, and state maps are available under the View Maps section. Print Quality Maps*
Discover, analyze and download data from USDA Plant Hardiness Zone Map. Download in CSV, KML, Zip, GeoJSON, GeoTIFF or PNG. Find API links for GeoServices, WMS, and WFS. Analyze with charts and thematic maps. Take the next step and create storymaps and webmaps.
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