Noxious Weeds Blog

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

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English ivy hanging basket in a plant nursery

October 18, 2023March 8, 2024 kcweeds

Noxious Weeds & Prohibited Plants: A Listing Guide

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

photo collage of a green shrub in bottom right, smoking volcano in background, paper yellow sun in top right corner

July 25, 2023December 6, 2023 kcweeds

Are weeds “weedy” in their native range?

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

Green leaves with droplets of water and white veins are attached to a stem. One yellow flower with five petals blooms on this same stem.

June 20, 2023July 25, 2023 kcweeds

Early Weed Detection Protects Wetlands

March 20, 2023July 24, 2023 kcweeds

The 2023 King County Noxious Weed List is Official!

March 20, 2023April 28, 2026 kcweeds

Spring Cleaning – Get into the Weeds

March 20, 2023June 20, 2023 kcweeds

Springtime Weeds

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