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UC Master Gardener Program of Contra Costa County

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WELCOME to Our New Home Page

We’re in the process of migrating to a new web platform to bring you a better experience. While everything is fully operational, you may notice a few missing features while we fine-tune the details. Thank you for your patience and support during this transition—we’re excited for what’s ahead! Stay tuned for updates, and let us know if you need any assistance.
The best way to stay up to date on our News and Events is to Sign Up for our seasonal newsletter "News to Grow By" 

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MARK YOUR CALENDAR 

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for the 2025 Great Tomato Plant Sale in 3 Contra Costa County Areas! 
Visit the Sale Web Page

We are looking forward to seeing your smiling faces very soon! 
Please note the dates and mark your calendar!

75+ varieties of tomatoes plus peppers, eggplants, squash, and more.
Description lists: Cherry and Paste Tomatoes, Beefsteak Tomatoes, Slicer Tomatoes, Peppers, and Other Veggies & Herbs.

Our Garden, Walnut Creek (located at the corner of N. Wiget and Shadelands):

  • Saturday and Sunday, April 5 and 6, from 10 a.m. to 3 p.m.
  • Wednesdays, April 9 and 16, from 9 a.m. to 2 p.m.

Shopping List for Our Garden, Walnut Creek

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Rivertown Demonstration Garden, Antioch (located in the Contra Costa Event Park, 1201 W. 10th St.):

  • Saturday, April 12, from 10 a.m. to 3 p.m.

Shopping List for Rivertown, Antioch

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Richmond Civic Center Library (325 Civic Center Plaza, Richmond):

  • Saturday, April 19, from 10 a.m. to 3 p.m.

Shopping List for West County, Richmond

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Past Webinar!

Bountiful Berries

Bountiful Berries

Tuesday, March 18, 6:00 - 7:30 pm
Go to webinar page for more info and to sign up.
Interested in more Events?

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Need an "Ask a Master Gardener" Table?

Ask a Master Gardener table - Shadelands, Walnut Creek, CA

Are you interested in an “Ask a Master Gardener” table at your Farmers Market or community event? 
Complete our Table Request Form and we will contact you!

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Looking for a Speaker?

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Does your organization need a speaker for an upcoming event? 
Our speakers are available. Use our Speaker Request Form.

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Need Advice to Grow By? Ask Us!

UC Master Gardener advice and problem diagnosis services are available to help you with your gardening questions year-round, by phone or email. Our Help Desk volunteers can help you identify a mysterious pest, locate the best plants for your specific situation, and offer advice for sustainable gardening practices.

Photographs help!
Email us at ccmg@ucanr.edu. 
Phone: (925) 608-6683

In your request, include your name, phone number, and city (the best plant advice depends on local conditions!).
Describe the problem in detail. Tell us what's going on. Please include the name and age of the plant if you know it, when the problem began, and where on the plant you found it, plus cultivation history such as watering, fertilizing, pruning, pesticides, construction, etc. 
Send photographs! Please show us the whole plant, the plant in its location, close-ups of the affected part, including any visible signs of pests, and both sides of damaged leaves. 

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Have You Seen Our Blog HOrT COCO Lately?

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Our Help Desk team presents HOrT COCO every other Tuesday. You can get timely gardening tips, find answers to frequently asked questions, and read about the truly unique requests for help we respond to. Check it out! And don't forget to subscribe.

Join our online webinars and see recordings on our YouTube channel. When you Sign up for our newsletter, you will receive email notices of upcoming webinars and events. Or join us on Facebook

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Contact

UC Master Gardener Program of Contra Costa County
(925) 608-6683, ccmg@ucanr.edu,  http://ccmg.ucanr.edu/
We're on YouTube, Facebook, Twitter, and Instagram too!

Facebook@CoCoMGUC
Spanish Facebook@CoCoMGUC.esp
Twitter@CoCoMGUC
Instagram@CoCoMGUC
YouTube—@CoCoMGUC

View all Farmers Market and Community Events
View all Speakers Bureau Events
View all Our Garden Events
View all Rivertown Demonstration Garden Events

Contribute for a Better Future

Office Locations

2380 Bisso Lane
Suite B
Concord, CA 94520
United States

Mission Statement

To extend research based knowledge and information on home horticulture, pest management, and sustainable landscape practices to the residents of California and be guided by our core values and strategic initiatives.