Noxious Weeds Blog

All things noxious weeds. Written by program specialists in King County, Washington

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Category: Weed Control

two dogs looking surprised and angry in front of a cluster of foxtail grass growing along a sidewalk
January 14, 2026September 25, 2025 kcweeds

“Foxtail” Grasses & Dogs: Identifying, Understanding, and Taking Action

August 28, 2025September 4, 2025 kcweeds

Seedy & Weedy: A Visual Guide to Common Weed Seeds

large bag of salt & jug of horticultural vinegar superimposed on a desolate desert backdrop.
June 20, 2024June 13, 2025 kcweeds

Salt & Vinegar on Weeds? Save it for the Chips!

poison hemlock clusters of white flowers
May 22, 2024March 18, 2025 kcweeds

Poison Hemlock: Know it, Dig it, Trash it

a person digging up poison hemlock
March 8, 2024December 20, 2024 kcweeds

Weedy Resources in King County

Knotweed infestation through seasons: lush green, to yellowing, to dead canes
December 20, 2023June 20, 2024 kcweeds

What is Plant Dormancy & Why Does it Matter?

A visual of mulching layers. The top later is 4-12 inches of heavy mulch, which is defined as arborist chips or bark/coarse mulch. The second layer is a paper layer, comprised of cardboard or newspaper. The final layer is weeded soil. 1-2 inches of compost layer are also interspersed throughout.
September 22, 2023December 20, 2023 kcweeds

Weedy Fall Activities

orange fire blaze on woody branching plants, 2 firefighters blurred in background
September 6, 2023December 6, 2023 kcweeds

Weeds and Wildfire 

June 20, 2023September 22, 2023 kcweeds

Learn to Identify Plants

1 larger photo of yellow flower in field on left, 3 stacked photos on right of flowers: purple poofy, yellow with heart shaped petals, and white trumpet shaped
June 20, 2023June 20, 2025 kcweeds

Summer Weeds to Watch for

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