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Stewardship In Action

SIA Logo FullProtecting watersheds one neighbor at a time.

 Knotweed is an aggressive invasive plant that damages property and destabilizes the riverbank.  Friends of the Cedar River Watershed is working in partnership with Seattle Public Utilities, Forterra, and King County Noxious Weed Control program to provide free knotweed control services to landowners who live along the mainstem or major tributaries of the Cedar River through Renton and Maple Valley.  Many sites are also eligible for native planting design and installation to ensure a stable riverbank and meet the needs of the property owner.

SIA-woman practicing injectionWorkshops and Events 

Stewardship In Action offers workshops each spring, summer, and fall to help landowners achieve success with invasive plant control and management of native plantings.  We are also available to provide  on-the-ground support for those who prefer to treat knotweed on their own.  Working neighbor to neighbor, we can rid the lower Cedar River basin of invasive plants and restore a healthy ecosystem while maintaining individual property values.



LO - River Resource BucketRiver Resource Buckets

River Resource Buckets are available for participating households!

Our goal is to support the community and the river by providing helpful resources, products, and tools from local businesses.


The River Resource Bucket includes!

  • 2 gallon compost bucket from Cedar Grove Compost
  • Coupon for two free bags of Cedar Grove Compost
  • Soap from Ballard Organic Soaps
  • Plant starts from area nurseries
  • Renton Curve Card
  • Seasonal shopping guide from the Maple Valley Farmers Market
  • Friends of the Cedar River Watershed native plant identification cards
  • The annual Watershed Report video, featuring students from Tahoma High
  • ...and More!

Contact us to learn how your product or service can be featured in the bucket!


2013 Knotweed Treatment Map

2013 SIA knotweed treament map

 Map courtesy of King County Noxious Weed Control Program. Larger version >

 SIA logo farm jpeg


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