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District of Columbia Planting Zones
District of Columbia covers USDA hardiness zones 7b to 8a on the 2023 map. The most common zone is 8a (86% of ZIP codes), where the coldest winter night averages 10 to 15 °F. Washington is zone 7b–8a, Washington Navy Yard is zone 8a and Naval Anacost Annex is zone 8a.
Zones in District of Columbia
Share of the state’s ZIP codes in each zone.
Major cities
- Washington 7b–8a
- Washington Navy Yard 8a
- Naval Anacost Annex 8a
Every city and town in District of Columbia
- Naval Anacost Annex 20373 8a
- Washington 20001+ 7b–8a
- Washington Navy Yard 20376+ 8a
Other states
Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida 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 Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming
Zones: 2023 USDA Plant Hardiness Zone Map ZIP code data, USDA Agricultural Research Service and the PRISM Climate Group, Oregon State University (official map). Place names: GeoNames (CC BY 4.0). Each ZIP code gets one zone, but a ZIP code can cross a zone line, and hills, valleys and towns can be warmer or colder than the zone shown.
About the Hardiness Zone Map
The Hardiness Zone Map finds your USDA plant hardiness zone, also called your planting or growing zone, from your ZIP code. Zones are based on the average coldest winter night of the year: each zone is 10 °F wide and split into a and b halves of 5 °F, from zone 1a in Alaska to 13b in Puerto Rico. Plant labels and seed packets give the coldest zone a plant can survive, so knowing your zone tells you which perennials, shrubs and trees can stay outside all winter. Zones come from the official 2023 USDA map ZIP code data for all 50 states, Washington DC and Puerto Rico.
How to use it
- 1 Enter your 5-digit ZIP code and press Find my zone.
- 2 Read your zone and the average coldest winter temperature it stands for.
- 3 Open your state to see its zones and the zone of every city.
- 4 Choose plants rated for your zone number or a colder (lower) one.
Frequently asked questions
What growing zone is District of Columbia?
District of Columbia spans zones 7b–8a. Zone 8a is the most common, covering 86% of the state's ZIP codes. Enter your ZIP code above for your exact zone.
What planting zone is Washington, DC?
Washington is in USDA zone 7b–8a, depending on the ZIP code. Its average coldest winter night is 5 to 15 °F.
What planting zone is Washington Navy Yard, DC?
Washington Navy Yard is in USDA zone 8a. Its average coldest winter night is 10 to 15 °F.
What planting zone is Naval Anacost Annex, DC?
Naval Anacost Annex is in USDA zone 8a. Its average coldest winter night is 10 to 15 °F.
What is the coldest zone in District of Columbia?
The coldest part of District of Columbia is zone 7b, with winter lows of 5 to 10 °F. The warmest is zone 8a, at 10 to 15 °F.
How are planting zones worked out?
Each zone is a 10 °F band of the average coldest winter night over 1991–2020, split into a and b halves of 5 °F. The map does not show summer heat, rainfall or frost dates, so check local advice before planting.
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