To offer a suggestion or report an error on the Water and Land Resources' Web site, please contact Fred Bentler, webmaster.
Kochia Kochia scoparia
This Class B noxious weed has a limited distribution in King County, and control is required. In western Washington this weed is sometimes found on roadsides or along railroad tracks in very dry, disturbed sites. In eastern Washington, kochia is widespread, and many counties report thousands of acres.
Introduced as a garden ornamental from Asia in the early 1900's, this weedy annual spread state by state. It reached eastern Washington by 1980. Kochia is very drought tolerant and can invade both irrigated and dryland crops. The economic impacts hit crops such as potatoes, alfalfa and wheat.
For more information about kochia, please follow this link to the Washington State Noxious Weed Control Board.
Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. To contact a staff member at the King County Noxious Weed Control Program, please call 206-296-0290 or by reach them by email.
This Class B noxious weed has a limited distribution in King County, and control is required. In western Washington this weed is sometimes found on roadsides or along railroad tracks in very dry, disturbed sites. In eastern Washington, kochia is widespread, and many counties report thousands of acres. 
for kochia.