Cedar River Restoration Program winning battle against knotweed

VOICE of the Valley Online News

After five years of restoration work on the Cedar River and its tributaries, the collaborative Stewardship in Action (SiA) program is celebrating as the riverbanks have begun to show signs of recovery.

In 2010 the Cedar River and its residents were in the throes of a massive knotweed infestation. In response, the SiA program was created to systematically tackle the knotweed and other invasive weeds growing on riverfront properties. SiA is a collaborative partnership of Seattle Public Utilities, Forterra, and the King County Noxious Weed Control Program. Although knotweed is less prevalent today, many other invasive weeds still thrive.


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