Stewardship Volunteer Programs

"Unless someone like you cares a whole awful lot, nothing is going to get better. It's not."

 — Dr. Seuss, The Lorax

Buckeye Canyon restoration volunteers (M. Salmon, 2010)The volunteer program is at the core of all of our efforts to restore the biodiversity of this wild and diverse mountain. Community-based stewardship not only engages a wide range of community members in this effort, it also helps to educate citizens about their local ecology and the importance of this significant island of biodiversity. As more members of schools and communities visit and learn about the unique plants and animals found on the mountain they are more likely to advocate for its long-term preservation and restoration. 

Through the involvement of volunteers, in all aspects of habitat management and restoration, we will be able to greatly extend the impact of limited funds. Hands-on stewardship also offers the opportunity for community members to directly engage the resource and take ownership in its restoration and maintenance.  

Nursery Program

Volunteers are welcome to join us every Wednesday at the Mission Blue Nursery. Activities vary depending on the season, but may include planting seeds collected from the mountain, transplanting seedlings, washing pots, and processing seeds collected from the mountain. Anyone interested in volunteering is welcome to drop in during our Wednesday workdays from 10am to 12:30pm.

For directions to the Mission Blue Nursery, click here.

Habitat Restoration Programs

The Stewardship Program is overseen by Ariel Cherbowsky, our Stewardship Coordinator. Ariel works with stewardship volunteers and interns to maintain critical habitat for endangered butterflies and native species by the removal of invasive plants and planting native species to restore diversity. Contact Ariel at ariel@mountainwatch.orgwith questions or to volunteer.

Saturday mornings: Workdays start by meeting at the office at 9:15am and go to 12:30pm with a 15 minute break (snacks provided!). We will carpool to the work site at 9:30am. Please wear warm, layered clothing, sturdy shoes or hiking boots, and bring a liter of water. Gloves and tools will be provided.

Drop-in volunteers are welcome. For large groups, please contact us ahead of time so we can make sure we have enough tools.

We meet at the Mountain Watch office, directions.

Friday and Saturday mornings - once a month: As of June 2011, our newly-formed South San Francisco (SSF) Weed Warriors will be working on sensitive butterfly habitat on the south slope of the mountain. Work involves removal of invasive, non-native species from grassland areas. The south slope of the mountain still has the largest areas of grasslands that are prime habitat for both the Mission Blue and Callippe Silverspot butterflies.

The 2 consecutive workdays are the 4th Friday and Saturday of each month from 9:00 AM and go until 12:00 noon. Please check our calendar to confirm workday dates.

SSF Weed Warriors meet at the parking lot behind the Mills Montessori School at 1400 Hillside Blvd in South San Francisco. 

Cypress Lane Wetlands Project on Tuesday mornings:

The Cypress Lane Wetlands restoration project is a joint project between San Bruno Mountain Watch and the City of Brisbane.

Stewardship workdays are from 10:00am-12:00pm every Tuesday. Volunteers will meet near 100 Cypress Lane - directions to site. You can download a printable site description and map here.

For more information be sure to visit the Cypress Lane Wetlands page. Contact us at or 415-467-6631 with questions.