Resources

Invasive Weeds

Invasive weeds threaten the health of our natural areas. This program will help you learn to identify and remove the most damaging of these plant species.

Learn More!

  • The Clackamas/Clark/Multnomah/Washington County Cooperative Weed Management Area (4-County CWMA) is a partnership of organizations, agencies and non-profits dedicated to combating invasive weeds across the region.
  • Let King County’s Noxious Weed Information and Services teach you everything you need to know about invasive weed identification and control.
  • Learn all about invasive plants with the City of Portland’s Invasive Plants Poster
  • Get resources and learn about workshops offered in East Multnomah County.
  • Watch excellent, educational weed videos and learn about what’s being done to control weeds in West Multnomah County.
  • Watch OPB’s The Silent Invasion

Get Involved!

  • Report a weed! Thanks to the East Multnomah Soil & Water Conservation District, learn which weeds to report, and how to do it.
  • Support the No Ivy League! Since 1994, they have worked tirelessly to empower youth, educate the public, and remove English ivy from Portland’s parks.