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Noxious weeds

King County, Washington

To offer a suggestion or report an error on the King County Noxious Weeds website, please contact Sasha Shaw, education specialist.

Upcoming Classes (click the workshop title for details)

  • Noxious Weed Control Recertification Seminar - all sessions of this class for 2016 are completed, contact us to be notified when the 2017 classes are scheduled.
  • Invasive Knotweed Control Workshop - May 5, May 11, May 26, June 2, August 18    
  • Lake Weed Watcher Training - June 23, Seward Park Audubon Center, 5902 Lake Washington Blvd S, Seattle, WA 98118, 6pm - 8 pm
  • PNW-IPC 2016 Invasive Plant Workshop - June 28, Bellevue. Note: we are presenting at this event, but it is sponsored by Pacific Northwest Invasive Plant Council. Pre-registration and fee are required.
  • Stop those Garden Runaways! - July 23, Neely Homestead Historical Demo Garden, 10 am- 11 am. This event is sponsored by the Master Gardener Foundation of King County. Learn about invasive plants and noxious weeds that are causing problems in our farms, forests and natural areas.  Find out what's noxious and what's just obnoxious! No fee and no registration required.

Register for a class (Registarse aquí)

Weed Watcher training 2015 (photo by Julie Combs)The King County Noxious Weed Control Program offers workshops and presentations upon request for community groups, neighborhood councils, vegetation management professionals, volunteer events, garden clubs and a wide range of other groups. Please contact Sasha Shaw if you would like a presentation on invasive plants or noxious weeds for your group, staff or community.

Related information

Related agencies


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).