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 ›
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 ›
It can feel a little overwhelming to confront a full grown patch of knotweed. June is the month knotweed, also known as false bamboo, reaches its full height and starts to think about flowering. With lots of rain and sunshine this… Read More ›
Noxious Weeds Blog 