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IAE Volunteer Event

Prairie Restoration Weed Pull at Henry Hagg Lake

March 9, 2024 @ 9:00 am 3:00 pm

Please join the Institute for Applied Ecology (IAE) for a volunteer weed pull day at Henry Hagg Lake!  We will be pulling the dreaded Scotch broom and oxeye daisy. These weeds can overwhelm important nectar resources for native butterflies (including the threatened Fender’s blue butterfly) within a few short years—if left untreated.

Both of these weeds present major challenges to our ongoing prairie restoration work at Hagg Lake—and we need volunteer help to pull them out! Help to restore habitat for the threatened Fender’s Blue butterfly, and learn more about the local prairie ecology and species’ recovery work. No special skills required! All tools and instruction are provided.


Event Details:

  • When: Saturday, March 9, 2024 between 9:00 a.m. and 3:00 p.m.
  • Where: Henry Hagg Lake, Washington County, Oregon (coordinates provided upon RSVP).
  • Work to be completed: Hand pulling invasive weeds to restore prairie habitat
  • What to bring: Bring lunch, water and warm clothes. Gloves are also advised. Tools will be provided. We will provide some refreshments throughout the day. No experience is necessary. We will hold this event regardless of the weather, so please bring rain gear and boots you are fine with getting muddy.
  • Requirements: All volunteers (or parent/guardian if the volunteer is a youth) must fill out both IAE’s volunteer release form and the Washington County Parks volunteer waiver agreement.

If you are interested in volunteering (large and small groups are welcome to join) or have questions about this opportunity, please contact Evan Lasley at [email protected] Please make sure to RSVP so we can be certain to bring sufficient tools and gloves for the day.

Our thanks to the U.S. Bureau of Reclamation and Washington County Parks for helping make this event possible.