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UCCE Master Gardener Program
of San Mateo & San Francisco Counties
1500 Purisima Creek Road
Half Moon Bay, CA, 94019

Ask a Master Gardener


(650) 276-7430


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UC Master Gardeners are University of California Cooperative Extension (UCCE) trained volunteers. They are residents of our community that give back all year to provide UCCE researched-based horticultural information to individuals in their communities and throughout the state.

They give talks and demonstrations, conduct plant clinics, staff phone help lines, provide training at community gardens, support school garden programs, staff information tables at Farmers’ Markets, fairs, and nurseries, and much more.

If you would like to support our efforts, donate now. Thank you!

Frank McPherson
Bay Area County UCCE Director

What is a Master Gardener?

UC Master Gardeners are volunteers trained and certified by the University of California to provide research-based information about home horticulture and pest management. We help home gardeners and community organizations garden sustainably and create a healthy environment. Learn more...


Ask a Master Gardener

Do you need help with your garden? Have a pest problem? Curious about what will grow well in your region? Due to COVID-19 all questions must be emailed to: mgsmsf@ucanr.edu.

Please include the following information in your email.

  1. Your name
  2. Location
  3. Question or problem, please include any photos. 
  4. Phone number and best time to call.


Request a Master Gardener Speaker

Our UC-certified Master Gardener volunteers are well-versed in a wide variety of gardening topics—native plants, edibles, container gardening, soil care, pruning, and much more. Learn more...

Calendar of Events
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