- This event has passed.
Washington State Knotweed Summit
February 18 @ 9:00 am - 3:30 pm
The event will occur in person and online via zoom.
Register at https://extension.wsu.edu/invasive-species/knotweed
February 18, 2026
9:00am-3:30pm
In Person Participation:
DF Allmendinger Center, WSU Puyallup Research and Extension Center
2606 West Pioneer, Puyallup WA 98371
Doors open at 8:30am. Meeting starts at 9:00am. Park anywhere on campus. The Allmendinger Center is on the South side of Kalkus Hall.