Click on any state below to see a close-up of the AHS Plant Heat Zone Map for that State.
Plant Heat-Zones are color-coded; view this Index of Color Codes first: [ in a pop-up window | in this window ]

Alabama Alaska Arizona Arkansas California - north | south Colorado Connecticut Delaware Florida - panhandle | peninsula Georgia Hawaii Idaho

Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri

Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania

Rhode Island South Carolina South Dakota Tennessee Texas - north | south | east | west Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

More information on the AHS Plant Heat-Zone Map, plus ordering information for a laminated, poster-sized Plant Heat-Zone Map, is available on the American Horticultural Society web site.

For winter Hardiness Zone Maps for Canada, the U.S., South America, Europe, Africa, and Australia, see Rare Exotic Seeds website.