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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.

Riparian Noxious Weed Specialist

Justin Bush, Riparian Weed SpecialistJustin Bush manages the program’s cooperative riparian noxious weed control and restoration projects throughout King County.  He is currently managing or partnering on riparian weed control projects on the Upper Snoqualmie River including the Middle and South Forks, Green River/Soos Creek, Duwamish River, Cedar River, and South Fork Skykomish River, as well as a variety of smaller projects and partnerships elsewhere in the county.  Because some riparian noxious weeds such as knotweed are too widespread for county-wide control and are generally not regulated weeds in King County, these projects are cooperative, voluntary partnerships between public and private landowners and non-profit organizations. These projects are funded in part through external grants and agreements.

Justin became the program’s Riparian Weed Specialist in 2015. In this role, he is the program's technical expert on riparian noxious weeds, including knotweed. Justin has over 8 years of experience with invasive species project management and implementation working for local, state and federal agencies. Most recently, he worked for the University of Texas at Austin, Lady Bird Johnson Wildflower Center where he managed the statewide invasive species partnership.

Contact Info:

Justin Bush
King County Noxious Weed Control Program
201 S. Jackson St., Suite 600
Seattle WA 98104

cell: 206-225-6310

Related Information


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).