Learn about noxious weeds

• Photo Guide and Alphabetical Index of Specific Weed Pages - Quick photo ID table and complete alphabetical list of weed common names and scientific names with links to information on specific noxious weeds
  • Best Managment Practices and Regulatory Guidelines
  • Knotweed Control Video  - four short videos on knotweed control techniques, including stem-injector instructions
• Weed Lists and Laws - King County Weed List, definition of noxious weed, Washington State Weed Law
  • 2012 King County Weed List - click to download printable brochure 
• Brochures and Publications - Download weed bulletins and brochures
  • Aquatic Noxious Weeds Slideshow (Note: slide show, 5.7 Mb) 
• Maps - see where noxious weeds have been found in King County, Washington 

Get help and participate

• Workshops and events
  • Fairs and information booths - event calendar, weed displays and weed experts on hand
  • Upcoming workshops - Register online
    • What is Knotweed and How Can I Get Rid of It (homeowner workshops) - June 16, June 28, July 10 and July 17
• Volunteer Information - volunteer opportunities and links, funding sources for stewardship groups
  • Lake Weed Watchers
  • Upper Snoqualmie Valley Weed Watchers - join us for the volunteer orientation and hike on June 23
• Identify weeds - weed identification assistance
• Weed control tips  - how to control weeds, Best Management Practices, Integrated Pest Management
• Report a noxious weed infestation - online form to report sightings of noxious weeds in King County
• Contact us with comments - we would like to hear from you about how our staff performed, how we responded to noxious weed reports, if our information is helpful, and anything else you would like to share with us about our program and our work.

Learn about the Noxious Weed Program

The King County Noxious Weed Control Board carries out the mandates of the Washington State noxious weed control law, Chapter 17.10 RCW. The King County Noxious Weed Control Program works throughout the county to prevent and reduce the economic, environmental and social impacts of noxious weeds in King County, Washington. The program's focus is to provide education and technical assistance to landowners and public agencies to help them find the best control options for noxious weeds on each site and to reduce the overall impact of noxious weeds throughout the county.

• Noxious Weed Control Board  - information on the county weed board, meeting schedule
• Program information - explaining who we are, what we do and frequently asked questions
• Annual report - program performance and noxious weed trends in King County
• Related information - links to county, state, federal and to other invasive plant information.

Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. To contact a member of the King County Noxious Weed Control Program, or to report a weed site, please call 206-296-0290 or reach them by e-mail.