This is the 2003 US National Arboretum "Web Version" of the 1990 USDA Plant Hardiness Zone Map.
Check the color of the section in your area of the map with the color key below.

How to use this Hyperlinked Map

** Click on any area within the United States to go to a close-up of that region. **
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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.

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 website by Ramon Jordan, March 1998 and revised March 2001
U.S. National Arboretum, Agricultural Research Service, U.S. Department of Agriculture, Washington, DC 20002

Note:  This publication is not copyrighted, and permission to reproduce all or any part of it is not required.

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