4-H at The Ramona Junior Fair
The Ramona Junior Fair debuted in 1971. Held annually in late July, it is a proud tradition in San Diego County.Organized and operated entirely by volunteers, the Fair brings together youth from…
UC Cooperative Extension San Diego County
Welcome
UC Cooperative Extension San Diego connects local needs with the power of UC research. Our county-based team lives and works in the communities we serve, delivering practical, science-based solutions across the region.
We support San Diego farmers with efficient growing practices, pest and disease management, and improved water and irrigation strategies. We promote smart water use, wildfire and invasive-species education, and stewardship of our unique natural resources.
We strengthen community health through nutrition education, active living programs, and youth development through 4-H. Volunteers in the Master Gardener and 4-H programs help extend our impact countywide.
Partnering with local, state, federal, and private organizations, we are San Diego’s stewards, problem-solvers, collaborators, and educators.
We are UC Cooperative Extension San Diego.
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The Summer Extension Connection Newsletter
The Summer Extension Connection Newsletter (June 2026) brings readers timely updates and research-based insights from UC Cooperative Extension San Diego. UCCE Summer Extension Newsletter 2026 (PDF, 5 MB)
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Upcoming Events
Last Wednesday Growers Meeting with Ana Pastrana
Save the Date | Free to the public! More information regarding this event coming soon. Attendance will include a virtual option.
Ask the Advisor: Sanitation Practices for Nurseries and Greenhouses
In this Ask the Advisor webinar, we'll discuss sanitation practices for nurseries and greenhouses. Come ready to ask your advisor any questions you may have about nursery sanitation!There is no cost,…
UC Master Gardener Fall Plant Sale
What to expect! Learn all about seed starting, vegetable gardening, native plants, garden art, food preservation, irrigation, and more. Shop from thousands of affordably priced plants: Spring…
Office Locations
San Diego Office Location (Kearny Mesa)
9335 Hazard Way
Suite 201
San Diego, CA 92123
United States
Phone
cesandiego@ucanr.edu