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2023 USDA map data · 40,000+ ZIP codes

What growing zone am I in?

Enter your ZIP code for your USDA plant hardiness zone, straight from the 2023 map data. Then browse your state, your city or your zone.

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Your zone by ZIP code

From the 2023 USDA Plant Hardiness Zone Map ZIP code data.

The zone chart

Average coldest winter night, 1991 to 2020.

All zones
1a-60 to -55°F 1b-55 to -50°F 2a-50 to -45°F 2b-45 to -40°F 3a-40 to -35°F 3b-35 to -30°F 4a-30 to -25°F 4b-25 to -20°F 5a-20 to -15°F 5b-15 to -10°F 6a-10 to -5°F 6b-5 to 0°F 7a0 to 5°F 7b5 to 10°F 8a10 to 15°F 8b15 to 20°F 9a20 to 25°F 9b25 to 30°F 10a30 to 35°F 10b35 to 40°F 11a40 to 45°F 11b45 to 50°F 12a50 to 55°F 12b55 to 60°F 13a60 to 65°F 13b65 to 70°F

Planting zones by state

All states
Alabama 7b to 9b Alaska 1a to 8b Arizona 5b to 10a Arkansas 7a to 8b California 5b to 11a Colorado 4a to 7a Connecticut 6a to 7b Delaware 7a to 8a District of Columbia 7b to 8a Florida 8b to 11b Georgia 7a to 9a Hawaii 10b to 13a Idaho 4a to 7b Illinois 5a to 7a Indiana 5b to 7a Iowa 4b to 6a Kansas 6a to 7a Kentucky 6b to 7b Louisiana 8b to 10a Maine 3b to 7a Maryland 6a to 8a Massachusetts 5b to 7b Michigan 4a to 7a Minnesota 3a to 5a Mississippi 7b to 9a Missouri 5b to 8a Montana 3b to 6b Nebraska 5a to 6a Nevada 5a to 10a New Hampshire 4a to 6b New Jersey 6b to 8a New Mexico 5a to 8b New York 4a to 7b North Carolina 6b to 9a North Dakota 3b to 4b Ohio 6a to 7a Oklahoma 6b to 8a Oregon 5b to 9b Pennsylvania 5b to 8a Rhode Island 6b to 7b South Carolina 8a to 9b South Dakota 4a to 5b Tennessee 6b to 8a Texas 6b to 10b Utah 4a to 8b Vermont 4a to 6a Virginia 6a to 8b Washington 6a to 9b West Virginia 5b to 7a Wisconsin 3b to 6a Wyoming 4a to 5b

Popular cities

All cities
Washington, DC 8a Houston, TX 9b New York, NY 7b El Paso, TX 8b Dallas, TX 8b Sacramento, CA 9b Miami, FL 11a Los Angeles, CA 10b Atlanta, GA 8a Philadelphia, PA 7b San Antonio, TX 9a Chicago, IL 6a Las Vegas, NV 9b Oklahoma City, OK 7b Phoenix, AZ 10a Austin, TX 9a Charlotte, NC 8a San Diego, CA 10b Pittsburgh, PA 6b Kansas City, MO 6b Cincinnati, OH 6b Minneapolis, MN 5a Saint Louis, MO 7a Louisville, KY 7a

Guides

The 2023 USDA hardiness zone map, explainedHow the 2023 USDA plant hardiness zone map works: what zones measure, the zone temperature chart, a and b hal…When to plant tomatoesWhen to plant tomatoes outside: after your average last spring frost, once nights stay above 50°F. Find your …How to read a plant tagWhat the hardiness zone range on a plant tag means, how to check it against your ZIP code zone, and what to d…

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