The Washington State Noxious Weed Control Board is considering several significant changes for next year’s state noxious weed list. These include adding small-flowered jewelweed (Impatiens parviflora) and European coltsfoot (Tussilago farfara) as Class A and B noxious weeds, respectively—additions originally proposed… Read More ›
Native to Mexico and the Midwestern United States, buffalobur (Solanum rostratum) is an annoying—and painful—regulated Class C noxious weed in King County. While we’re just a truck ride from its native range, this plant has effectively spread all over the… Read More ›
It might look like the weeds won this year, but you can start gearing up for next year by attending a free class on noxious weeds and invasive plants being offered by the King County Noxious Weed Control Program. It is… Read More ›
Washington Conservation Corps crew member and plant enthusiast Colleen Braun hates noxious weeds. It makes her mad to see them invading into natural areas and taking over native plant habitat. So when Colleen and fellow WCC’er and photographer Cynthia Saleh… Read More ›
Tansy ragwort (Senecio jacobaea) You might still be able to catch some late-flowering tansy ragwort before the seeds get loose. Also, areas that were mowed or impacted by cinnabar caterpillars are likely to have plants flowering this month, especially after we… Read More ›
It’s not every day you find a new noxious weed in your county, but this August King County had one of those days. On August 15th, our program was alerted to an infestation of the Class A noxious weed ricefield… Read More ›
It’s that time of year again: the weather’s hot, the ice cream stands are open, and King County’s invasive knotweeds (Polygonum spp.) are in full bloom. Don’t worry too much about your knotweed going to seed: King County’s most common… Read More ›
What plant is so tough that it can outcompete common cattail (Typha latifolia), purple loosestrife (Lythrum salicaria), and even Himalayan blackberry (Rubus armeniacus) along King County’s shores? Garden loosestrife (Lysimachia vulgaris), a Class B noxious weed from Eurasia, has managed… Read More ›
As we roll into August, plenty of noxious weeds across the county are blooming and going to seed, and those of us in the weed world are doing our best to keep up. Here’s what to watch out for this… Read More ›
Invasive plants are a menace for a lot of reasons: They can cause serious harm to humans and animals; lower farmers’ crop yields; damage the mountains and lakes we love to visit, cutting back the tourism revenue for surrounding communities;… Read More ›
