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Noxious weeds are a danger to our environment and the economy. These introduced species cost our region millions of dollars in lost agricultural production, environmental degradation and added maintenance costs.  Once invasive plants spread to natural areas, they harm native plants and wildlife and can be impossible to eradicate.

Quick links

Identify and learn about weeds and invasive plants

Report a weed

Locate noxious weeds in King County

Report an infestation

Control noxious weeds

Volunteer

To contact us, please see the staff directory for the King County Noxious Weed Control Program, call 206-477-WEED (206-477-9333) or send us an e-mail.  Program offices are located in the King Street Center Building at 201 S. Jackson St., Suite 600, Seattle, WA 98104.