Noxious Weeds Blog

King County, Washington

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Featured kcweeds

The 2022 King County Noxious Weed List is official!

Featured kcweeds

Old man’s beard – January 2022 Weed of the Month

Featured kcweeds

The story of English holly in Washington

Tree-of-heaven, Ailanthus altissima, growing along a roadside. Photo by Andreas Rockstein CC2.0.
October 12, 2021 kcweeds

Statewide call for tree-of-heaven locations in effort to prevent spotted lanternfly spread

SE Seattle Tool Library volunteers are ready for some weed control action!
July 13, 2021July 28, 2021 kcweeds

Tackle your Scotch broom and other weeds with weed control tools from your local tool libraries

Young person holding a stem of Egeria densa in their hand
July 1, 2021January 12, 2022 kcweeds

Lake Rasmussen’s new aquatic noxious weed gets speedy action – July 21 community open house to discuss control plans

Egeria stem being held by someone with a person in a canoe in the background
June 21, 2021 kcweeds

Uh oh, that’s not milfoil – Green Lake has a new aquatic weed to deal with

April 22, 2021April 19, 2021 martaolsonwlrd

My Favorite Weeds (and some not-so-favorites) PART 2

April 16, 2021 martaolsonwlrd

My Favorite Weeds (and some not-so-favorites) PART 1

Tree-of-heaven (Ailanthus altissima)
April 11, 2021April 12, 2021 kcweeds

Washington prohibits sale and distribution of twelve new plant species

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Follow us on Instagram @kingcountyweeds

📢Applications are OPEN from now until Feb. 12!
“New year, new me!” Garlic mustard (pictured above) is one of the first weeds on our radar early spring every year.
Scroll to the last photo to see what this site at Crystal Springs looked like before the @thedirtcorps Green Start crew came in and cleaned it up! @tukwilaparks
Did you know you can cut a branch from a living willow tree, push it in the ground and it will grow a new tree? 🤯 We can plant trees in tough places with “live staking” like we did along the Duwamish River in Tukwila last month.

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