Master Gardeners of San Mateo and San Francisco Counties

Master Gardeners of San Mateo and San Francisco Counties


Location Focus: San Mateo County and San Francisco County


About: Master Gardeners are UC-trained volunteers who provide research-based garden and pest information to home gardeners, promoting sustainable gardening and a healthy environment.


Master Gardener Helpline:

Mondays and Thursdays 9:00 AM - 4:00 PM , 650-726-9059 x 107





Address: 80 Stone Pine Road # 100, Half Moon Bay, CA 94019


Phone Number: (650) 726-9059 ext.107



Programs: Educational programs, plant clinics, workshops, and talks about sustainable gardening and pest management. Annual events include an educational garden tour and a tomato and pepper plant sale. Volunteers also staff a master gardener helpline to answer home gardening questions from residents throughout both counties.


Volunteer Opportunities: Learn how to become a Master Gardener.  Applications are accepted for our 12-week volunteer training program most years in June; watch our website for details.


Volunteers who would like to assist with our garden events are welcome to contact us.