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UC Master Gardeners are volunteers trained and certified by the University of California to provide research-based information about home horticulture and pest management. They serve their communities by answering questions from the public, teaching workshops, leading plant clinics, and speaking on a variety of subjects.

Spring Edibles Plant Library

Here you'll find lists of spring-planted vegetable varieties. Browse the links below to look through vegetables and herbs by type and learn more about each unique variety. Learn more.

Harvest for Neighbors - June 2022

The San Mateo/San Francisco UC Master Gardeners, in coordination with the organization Each Green Corner,  participate in a special project called “Harvest for Neighbors.” Working together in gardens; applying knowledge, experience, and gardening expertise; and donating fresh produce to food pantries in the Bay Area fosters a win-win scenario for all volunteers involved.  Click here for more photos.
  • CoastsideJune2022
    Better Together: The New Science of “Companion Planting”

      Like many things in life, the best results are achieved by working together.  This is especially true with plants!  Although you may have heard about plants that are thought to aid in insect control, disease prevention or the benefits...

  • Coastside Magazine cover May 2022
    Growing Great Roses: How To Do It On The Coast

    Growing roses on the coast can be more of a challenge than in other parts of the Bay Area.  Wind, higher humidity, cloudy weather, and salty air can thwart the gardener's quest for lovely blooms. However, conditions in coastal communities are highly...

  • April thumbnail 2022
    Tomatoes for Our Coastal Climate

    Glorious, homegrown tomatoes are the rock stars of the summer garden. But since tomato plants usually need lots of sun and heat, what's a coastal gardener to do?  Good news: there are tomato varieties that do well in areas that are cooler and where...

Ask a Master Gardener
Do you need help with your garden? Have a pest problem? Curious about what will grow will in your region? Send us an email and include:
Your Name, Zip Code, Email address, Description of problem or question, the type and age of plant, the specific problem/question, history & details - what the damage looks like (include plant location, sun exposure, irrigation method, fertilization, and insecticide applications.) Please attach photos if available (overall plant, views of pest, leaves, etc.) 
Or visit the Master Gardner Helpline by phone or in person:
Helpline: (650) 276-7430
Mondays: 10am to 1pm
UC Elkus Ranch
1500 Purisima Creek Road
Half Moon Bay, CA 94019
Tuesdays: 10:30 to 1pm
SF Botanical Garden Library
1199 9th Ave
San Francisco, CA 94122
Thursdays: 1pm to 4pm
Veteran's Memorial Senior Center
1455 Madison Ave.
Redwood City, CA 94061
Request a Speaker

Are you looking for a speaker for an upcoming event? UC Master Gardeners can present research-based information on a variety of topics to your organization.

Become a Master Gardener

Any San Mateo or San Francisco County resident with an interest and experience in horticulture and a desire to volunteer for community service may apply.