In the South Fork Stillaguamish Knotweed Control and Restoration project, Sound Salmon Solutions (SSS) worked with community members to restore salmon habitat in tributaries to the South Fork Stillaguamish River, including Jim, Canyon and Turlo Creeks. With an average of only 246 spawners returning annually, South Fork Stillaguamish Chinook salmon are considered on the brink of extinction. Aquatic and riparian habitat in these waterways is degraded. Lack of tree cover and spread of invasive weeds have led to elevated water temperatures, excessive sedimentation, reduced food supply, and loss of instream cover, all of which harm salmon. Knotweed, a non-native plant, was invading the the project area, creating dense monocultures that crowd out native vegetation. Knotweed regenerates from severed roots and stems, spreading easily downstream with high flows. To restore salmon habitat, knotweed was controlled and native vegetation was re-introduced to riparian areas that has a lack of native plants. SSS worked with private landowners to control knotweed on their property along Jim, Canyon, and Turlo Creeks. From 2008 to 2011, SSS contacted 177 landowners and secured 145 land owner agreements. Community volunteers, local students, and members of the Washington Conservation Corps helped restore riparian habitat with native plants. Fourteen acres of riparian vegetation was restored with 5,439 native plants. This project improved salmon habitat by increasing shade, increasing leaf and wood input, improving bank stability, and decreasing knotweed populations. Project partners included Snohomish County Noxious Weed Control Board, Surface Water Management, Washington Department of Natural Resources, Snohomish Conservation District, Stillaguamish Cooperative Weed Management Area Members, and Washington State Department of Ecology.