Open Garden Gate
Come along to our weekly Workday & Open Garden Gate - we are now operating winter hours - 11am to 4pm. Open year-round on Thursdays - the public is welcome to explore the garden, ask for advice,…
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UC Master Gardeners of Calaveras County
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UC Master Gardeners of Calaveras County
Welcome to the UC Master Gardener community! Since 1980, the UC Master Gardener Program has helped deliver the University of California's pioneering research directly into the hands of those who share a passion for gardening and environmental stewardship. A program under UC Agriculture and Natural Resources (ANR), we pride ourselves on being more than just a gardening program— we are in our communities helping build more sustainable landscapes.
Who are UC Master Gardeners?
UC Master Gardeners are rooted in education and grown in-service! In exchange for training from the University, UC Master Gardeners offer volunteer services and outreach to the general public in more than 1,286 demonstration, community and school gardens across 53 California counties. Last year 6,154 active UC Master Gardener volunteers donated 446,237 hours, and 6.8+ million hours have been donated since the program's inception.
Questions? 209 754-2880 or calaverasmg@ucanr.edu
Join us in the Demo Garden, every Thursday in 2025
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Have a Gardening Question?
UCCE Master Gardeners of Calaveras County are here to answer your gardening questions!
- Demonstration Garden: The garden is open every Thursday - November to March 11am to 4pm, April to October 9am to 1pm. Free gardening advice, free seed share, free produce (as available), plants for sale. 891 Mountain Ranch Road, San Andreas.
- Phone: 209-754-2880 (Please leave a message with your contact information.) Office located @ 423 E. St. Charles Street (highway 49), San Andreas
- Email: calaverasmg@ucanr.edu
Bring a sample for identification, or drop by to ask questions. If you bring a sample, please put plant material in a plastic bag. For insect identification, don't bring them alive! Please preserve insects in a container with rubbing alcohol, or by freezing.
Emergency: Glassy-Winged Sharpshooter in Stanislaus County
As part of the Pierce’s Disease Control Program's rapid response protocol, visual surveying and trapping in the area have found 54 GWSS adults, three nymphs, one viable egg mass, and 11 emerged egg masses on both commercial and residential properties. The Stanislaus County Agricultural Department is investigating the area to determine the extent of the infestation. Click for a map of the current boundaries.
The PDCP has initiated a Proclamation of an Emergency Program for this new infestation, with treatments planned through November 2026. PDCP will hold a public meeting with the community on Wednesday, Oct. 16 at 6 p.m. to discuss the response plan and will notify property residents before starting any treatments. Biocontrol is also being used to eradicate this infestation and PDCP has released 1,890 biocontrol agents at nine sites in the area.
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Becoming a UCCE Master Gardener
Living with Fire
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Bark Beetle &
Tree Mortality Resources
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Office Locations
UCCE Central Sierra Calaveras County Office
423 East Saint Charles Street
San Andreas, CA 95249
United States
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Mission Statement
Our mission is simple: "To extend research-based knowledge and information on home horticulture, pest management, and sustainable landscape practices to the residents of California." We stand guided by our core values and strategic initiatives, aiming to inspire, educate, and build communities of eco-conscious gardeners.