Washington Plant Hardiness Zones

Hardiness Zones, also referred to as Growing Zones or Planting zones are defined by the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS). The zones in this map were created in 2023 using mean extreme climate data covering the period of 1991 to 2020. The previous version of this map released in 2012 was created using climate data from the period of 1976-2005. The data in the 2012 maps covered a cooler period than the 2023 maps.

Map Cities Related

Washington Hardiness Zones Map - 2023

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List of Hardiness Zones for Locations in Washington

Location2023 Hardiness Zone2012 Hardiness Zone1990 Hardiness Zone
Aberdeen9a - 20°F to 25°F 9a - 20°F to 25°F8a - 10°F to 15°F
Anacortes8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Arlington8a - 10°F to 15°F 8b - 15°F to 20°F8a - 10°F to 15°F
Auburn8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Bainbridge Island9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Battle Ground8b - 15°F to 20°F 8a - 10°F to 15°F8a - 10°F to 15°F
Bellevue9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Bellingham8b - 15°F to 20°F 8a - 10°F to 15°F8a - 10°F to 15°F
Bonney Lake8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Bothell8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Bremerton9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Burien9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Camano8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Camas9a - 20°F to 25°F 8b - 15°F to 20°F8b - 15°F to 20°F
Centralia8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Cottage Lake8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Covington8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Des Moines9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Edmonds9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Ellensburg6b - -5°F to 0°F 6a - -10°F to -5°F6a - -10°F to -5°F
Everett8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Federal Way8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Ferndale8b - 15°F to 20°F 8a - 10°F to 15°F8a - 10°F to 15°F
Five Corners8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Frederickson8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Graham8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Hazel Dell8b - 15°F to 20°F 8b - 15°F to 20°F8b - 15°F to 20°F
Issaquah9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Kenmore9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Kennewick7b - 5°F to 10°F 7a - 0°F to 5°F7a - 0°F to 5°F
Kent8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Kirkland8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Lacey8b - 15°F to 20°F 8a - 10°F to 15°F7b - 5°F to 10°F
Lake Stevens8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Lake Stickney8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Lakewood8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Liberty Lake7a - 0°F to 5°F 6b - -5°F to 0°F6b - -5°F to 0°F
Longview8b - 15°F to 20°F 8b - 15°F to 20°F8b - 15°F to 20°F
Lynden8a - 10°F to 15°F 8a - 10°F to 15°F8a - 10°F to 15°F
Lynnwood9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Maple Valley8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Martha Lake9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Marysville8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Mercer Island9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Mill Creek9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Monroe8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Moses Lake7a - 0°F to 5°F 6b - -5°F to 0°F6a - -10°F to -5°F
Mount Vernon8b - 15°F to 20°F 8a - 10°F to 15°F8a - 10°F to 15°F
Mountlake Terrace9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Mukilteo8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Oak Harbor8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Olympia8b - 15°F to 20°F 8a - 10°F to 15°F7b - 5°F to 10°F
Parkland8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Pasco7b - 5°F to 10°F 7a - 0°F to 5°F7a - 0°F to 5°F
Port Angeles9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Port Orchard9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Pullman6b - -5°F to 0°F 6b - -5°F to 0°F6a - -10°F to -5°F
Puyallup8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Redmond9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Renton9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Richland7b - 5°F to 10°F 7b - 5°F to 10°F7a - 0°F to 5°F
Salmon Creek8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Sammamish9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
SeaTac9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Seattle9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Shoreline9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Silver Firs9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Silverdale9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
South Hill8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Spanaway8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Spokane7a - 0°F to 5°F 6b - -5°F to 0°F5b - -15°F to -10°F
Spokane Valley7a - 0°F to 5°F 6b - -5°F to 0°F6a - -10°F to -5°F
Sunnyside7b - 5°F to 10°F 7a - 0°F to 5°F6b - -5°F to 0°F
Tacoma8b - 15°F to 20°F 8b - 15°F to 20°F8a - 10°F to 15°F
Tukwila9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Tumwater8b - 15°F to 20°F 8a - 10°F to 15°F7b - 5°F to 10°F
University Place9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Vancouver8b - 15°F to 20°F 8b - 15°F to 20°F8b - 15°F to 20°F
Walla Walla7b - 5°F to 10°F 7a - 0°F to 5°F6b - -5°F to 0°F
Washougal9a - 20°F to 25°F 8b - 15°F to 20°F8b - 15°F to 20°F
Wenatchee7b - 5°F to 10°F 7a - 0°F to 5°F6a - -10°F to -5°F
West Richland7b - 5°F to 10°F 7a - 0°F to 5°F7a - 0°F to 5°F
White Center9a - 20°F to 25°F 8b - 15°F to 20°F8a - 10°F to 15°F
Yakima7a - 0°F to 5°F 6b - -5°F to 0°F6b - -5°F to 0°F

Hardiness Zone Maps for Neighboring States