Scotch broom is one of the most costly invasive species in Washington, according to a 2017 report commissioned by Washington State agencies. Of the 23 species analyzed, the study found that Scotch broom is near the top of the list in terms of economic… Read More ›
Washington’s invasive species reporting app just got smarter. Now anyone can use their smart phone or other device to easily report sightings of invasive plants, animals and other pesky organisms anywhere in Washington State and be sure that information will… Read More ›
During the winter months in the Pacific Northwest, English ivy stands out even more than usual. Although some people enjoy the evergreen look of it on fences and tree trunks, English ivy is also at its worst in the winter… Read More ›
This hiking season, King County weed watcher volunteers searched a total of 119 miles of trail in the Middle Fork Snoqualmie and Alpine Lakes areas of King County, on the hunt for invasive plants. The volunteers’ contribution of 500 plus… Read More ›
When people ask for the worst noxious weed in King County, invasive knotweed is on the top of the list. It has so many of the qualities that make invasive plants troublesome. It grows and spreads rapidly, out-competes most other plants, is… Read More ›
The expression that weeds don’t respect property lines applies more on lakes than anywhere else. Residents of four small lakes in King County are showing that working together as a community is the best way to overcome the challenges posed… Read More ›
Garlic mustard is a tricky noxious weed that usually escapes notice until it’s too late. This inconspicuous plant is often spread by hikers and animals unwittingly carrying the seeds along woodland trails, such as the one where it was discovered… Read More ›
King County weed specialists recently responded to a report of a new forest invader called small-flowered jewelweed found along Novelty Hill Rd just east of Redmond Ridge. This central Asian species is a widespread invasive plant in European forests, but… Read More ›
Effective July 24, the list of prohibited plants in Washington just grew by six. The species added include several popular ornamental plants that are now prohibited from sale: butterfly bush (non-sterile varieties), yellow archangel, lesser celandine and all hybrid non-native… Read More ›
Each year the King County Noxious Weed Control Program sponsors the Right Plant, Right Place program for students in King County. In the 2015-2016 school year, 36 classrooms of 965 students from 9 schools participated in the program. Through interactive… Read More ›
