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California Native Plant Society

Santa Clara Valley Chapter

Habitat Restoration at Edgewood: Edgewood Weed Warriors


Though just 467 acres, Edgewood Park & Natural Preserve near Redwood City is widely known for fabulous wildflowers and amazing diversity.  Did you know it’s an official Natural Preserve, and the only one in the San Mateo County park system?  As a Natural Preserve, its goal is to protect native species, including over 300 native plants!  And that’s where YOU can help.

Invasive, non-native “weeds” displace native plants and reduce diversity.  But dedicated park staff and volunteers, in a collaboration between San Mateo County Parks & Recreation, The California Native Plant Society (CNPS), and Friends of Edgewood, work to control the weeds so natives have plenty of room to flourish.

Want to help preserve this natural treasure?
VOLUNTEER with our Edgewood Weed Warriors restoration team!

You’ll be able to:

  • Learn about native plants, weeds, and ecology from local experts
  • View rarely seen plants up close at our work sites
  • Meet other volunteers with similar interests
  • Keep Edgewood native while getting fresh air and exercise in a beautiful setting!

There’s lots to do so everyone is welcome, whether every week, occasionally, or just once.  No experience is necessary, just volunteer spirit and an interest in Edgewood.


  • DON’T DO THIS ON YOUR OWN!  Plant removal & going off trail require a permit. 
  • Teens must each be accompanied by one of their own parents; unaccompanied adult students must have proof of age. 
  • Large groups should call ahead to make special arrangements.
  • Sturdy gloves are recommended; you might also want: sunscreen, water, a hat, layered clothing, long sleeves/pants.

Hope to see you soon at one of our work outings!


Our volunteer restoration program at Edgewood Park has run for over 25 years.  Known as the Edgewood Weed Warriors, the program has made amazing progress, yet there’s still so much we can do to make Edgewood an inspirational showcase of all CNPS stands for!  To learn more about the past history and what challenges lie ahead, check out:

Restoration Sessions

We have weekly sessions on Wednesday afternoons during daylight saving time and at  9 am on Friday mornings. Meeting locations are determined weekly. For more information contact the Weed Warriors coordinator at This email address is being protected from spambots. You need JavaScript enabled to view it..

Our program operates under permission from and/or in partnership with:

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