UC Master Gardeners of San Diego County

Welcome to UC Master Gardeners of San Diego County

As part of the University of California's Agriculture and Natural Resources division, we serve our community by sharing research-based knowledge and sustainable gardening practices. Our dedicated volunteers work to empower San Diego County residents with the skills and expertise needed to grow food, tend gardens, and protect California's precious natural resources. We understand that every garden and gardener is unique. That's why we customize our outreach and education to embrace San Diego County's distinctive landscape and diverse communities. Whether you're a first-time gardener or a seasoned green thumb, we're here to help your garden thrive. Join us in cultivating a more sustainable, beautiful, and bountiful San Diego County.  San Diego County Yearly Impact


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Garden Questions? Try our Hotline!

Have a gardening question? Our trained UC Master Gardener volunteers are ready to help! Reach out to our Help Desk for free, research-based answer to your gardening questions. Whether you're battling pests, selecting plants, or starting your first garden, we're just a call or click away. 
Call our Master Gardener hotline at (858) 822-6910. It's free! Email us at Help@MasterGardenerSD.org

Events

Ready to improve your gardening skills? Join us for hands-on workshops throughout the year, covering topics from mastering tomato growing to creating water-wise landscapes. Whether you're looking to learn one new skill or dream of becoming a certified UC Master Gardener, we have an event for you. 

Browse our upcoming workshops and training opportunities. Click Here for Upcoming Events

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"Advice to Grow by... ask us"
Our UC Master Gardener Program is proudly supported by the Master Gardener Association of San Diego County.
Click here to visit their website to learn more.

Contribute for a Better Future

Upcoming Events

Ask A Master Gardener sign is at a booth with two Master Gardeners smiling to help people next to gardening signs and with a closeup of raspberries and blackberries in the background.
Event Date
November 14, 2026

Ask-A-Master Gardener at Poway Farmers Market

Bring your best questions to our booth, and our UC Master Gardeners will help find research-based answers for you! The Farmers Market creates a pedestrian-friendly shopping and entertainment…
A farmers market amongst eucalyptus trees with rows of tents and shoppers, featuring a circular logo with "Cardiff Farmers Market" text, a surfer, and fruit.
Event Date
November 14, 2026

Ask-A-MG at Cardiff Farmers Market

Visit our Ask-A-Master Gardener booth with your gardening questions, and we'll help find research-based answers!Hosted by Cardiff 101 Main Street, this Certified California Farmers Market offers a…

Mission Statement

To extend research-based knowledge and information on home horticulture, pest management, and sustainable landscape practices to the residents of California.