Noxious Weeds Blog

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

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Tag: blackberry

August 28, 2025September 4, 2025 kcweeds

Seedy & Weedy: A Visual Guide to Common Weed Seeds

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

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?

SE Seattle Tool Library volunteers are ready for some weed control action!
July 13, 2021March 20, 2023 kcweeds

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

volunteer with Scotch broom
November 13, 2019November 13, 2019 kcweeds

Restoration of White Center’s Seola Pond to get help from new invasive weed project

June 18, 2018June 21, 2018 theweedsbeat

Himalayan Blackberry – June 2018 Weed of the Month

June 15, 2018 theweedsbeat

Invasive weeds that are ripe for action this time of year

Spotted jewelweed in Swamp Creek wetland, photo by Cynthia Saleh
September 13, 2017 kcweeds

The Noxious Weed Horrors of Swamp Creek

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