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January 27, 2012

Plant Hardiness Zone Map — Updated after 22 years

Screen Shot 2012-01-26 at 9.22.14 PM

Welcome news for gardeners: the changes you've noted over the past two decades are now official.

From the U.S. Department of Agriculture website:

The 2012 USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10-degree F zones.

For the first time, the map is available as an interactive GIS-based map, for which a broadband Internet connection is recommended, and as static images for those with slower Internet access. Users may also simply type in a ZIP Code and find the hardiness zone for that area.

No posters of the USDA Plant Hardiness Zone Map have been printed. But state, regional, and national images of the map can be downloaded and printed in a variety of sizes and resolutions.

January 27, 2012 at 12:01 PM | Permalink


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