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Do you need help identifying a weed?  Are you concerned about that mystery plant growing in your pasture? Or wonder if that new flower taking over your backyard or pond is a noxious weed?

Identifying your weed is the most important step to effective weed control. There are many ways to get started! Here's just a couple our specialists prefer:

  • Using characteristics about the weed for Washington weeds: use the Washington State Noxious Weed Control Board’s “identify a weed” form: link to form

  • Using your phone camera for all plants (and living organisms) : use the phone app “seek” by iNaturalist to ID using AI technology with your camera or a photo: link to seek info and app

  • Browse our flowering weed photo index to see if your weed is there (Note: our website mainly covers weeds on the Washington State Noxious Weed List and may not include all common weeds or weeds located outside of Washington State).

  • Send quality digital pictures by email (Please note: if you are located outside of Washington State, we may not be able to identify your plant, and you may want to contact a local expert).

  • Call us at 206-477-WEED to set up a site visit for large infestations of regulated weeds

  • If you are located in King County, Washington, you can also mail us a plant (in a sealed plastic bag with a DRY paper towel, including information to contact you) or drop it off at our office during the work week. 201 S. Jackson St., Suite 600, Seattle, WA 98104

  • Learn more about how to report-a-weed and help us track infestations here

 

Related information

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Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. To contact staff, see the Noxious Weed Control Program Directory, send an email, or call 206-477-WEED (206-477-9333).