The Washington State Department of Agriculture (WSDA) maintains a quarantine list of plants, also called the prohibited plants list, whose sale or distribution is prohibited in the state. All Class A Noxious Weeds and many Class B and C noxious weeds are on this list. There are also plants on the list to prevent them from being imported and spread in our state. For questions about quarantine list, contact WSDA's Plant Services Program at (360) 902-1874 or email PlantServices@agr.wa.gov.
Click here to see the list in the Washington Administrative Code 16-752-610.
Identify a noxious weed1111 Washington Street SE
Olympia WA 98504
P.O Box 42560
Olympia, WA 98504-2560
noxiousweeds@agr.wa.gov
