Noxious Weeds Blog

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

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Tag: noxious weed

Sprig of holly showing spiny waxy leaves and bright red pea-sized berries.
February 17, 2026February 17, 2026 kcweeds

The 2026 Noxious Weed List is Official!

June 16, 2025July 7, 2025 kcweeds

Accidental (or Intentional) Weed Reporting Using iNaturalist

Sprig of holly showing spiny waxy leaves and bright red pea-sized berries.
March 18, 2025January 29, 2026 kcweeds

The 2025 Noxious Weed List is Official!

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

gloved hand holding dug up plant with horizontal root shooting up multiple new growths (rhizome)
February 16, 2024June 20, 2024 kcweeds

The 2024 Noxious Weed List is Official!

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?

Text on photo: Proximos Events Se ensana en espanol. Person spraying herbicide from a backpack wearing a face covering.
November 1, 2023November 25, 2024 kcweeds

Próximos Eventos

English ivy hanging basket in a plant nursery
October 18, 2023March 8, 2024 kcweeds

Noxious Weeds & Prohibited Plants: A Listing Guide

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

Weeds and Wildfire 

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