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USDA Plant Hardiness Zone Map
Iowa, Minnesota, Montana, Nebraska, North Dakota, South Dakota, Wisconsin, Wyoming
Listed by zone. -- Names of representative plants listed under the coldest zones in which they normally succeed.
Listed alphabetically. -- Cold hardiness ratings (zones) for selected woody plants.
Go to the USDA Hardiness Zone Map
USDA Miscellaneous Publication No. 1475. Issued January 1990
Authored by Henry M. Cathey while Director, U.S. National Arboretum
Edited, formatted and prepared for the US National Arboretum web site by Ramon Jordan, March 1998
U.S. National Arboretum, Agricultural Research Service, U.S. Department of Agriculture,
Washington, DC 20002.
Updated and edited, by Yankee Gardener, February 2001
Back to the USDA Hardiness Zone Map Introduction Page
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