Earth Day Festival 2026
Celebrate Napa's Earth Day Festival with Master Gardeners!Saturday, April 18, 11:00am - 4:00pmOxbow Commons, Downtown NapaFree Admission! Food & Entertainment! Educational Info &…
UC Master Gardeners • Napa County
Celebrate Napa's Earth Day Festivalwith Master Gardeners!Saturday, April 18, 11:00am - 4:00pm Oxbow Commons, Downtown Napa Free Admission! Food & Entertainment! Educational Info & Activities! | Image  |
Master Gardener Help Desk
Got a plant problem or general gardening question? Your Napa County Master Gardeners are here to help!
Simply complete the Plant Problem Help Form and we will contact you once we have researched your question. For best results, please attach at least one photo of your plant.
Learn more about the Master Gardener Help Desk
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Workshops and Demonstrations
Attend our free UC Master Gardener workshops and demonstrations to learn expert tips and hands-on gardening techniques for a thriving garden all year round!
Want to Become a Master Gardener?
Attend one of our informational sessions to find out how.
Master Gardener Volunteers are adults of all ages who are willing to learn, volunteer, and be involved; some knowledge of plants and gardening is an asset. Master Gardener Volunteers are well trained and enthusiastic individuals capable of imparting their knowledge to diverse groups of people in a wide range of community settings.
Information on our Master Gardener Trainee Class
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Additional Projects and Resources
Gardening Resources Need a Speaker? Community Gardens
Stay Connected
Contribute for a Better Future
Upcoming Events
Worm -or- Backyard Composting Workshop (Multiple Dates Available)
Free Backyard Composting 2026 Workshops Join Master Gardeners to learn about worm or backyard composting - choose your own adventure! For those taking the backyard composting portion, after…
Library Talk: Growing Corn - Our Field Test Favorites
Master Gardeners field-tested corn varieties: find out what worked best.From Aztecs to agribusiness, corn has long been an essential American food and remains so today. The UC Master Gardeners of…
May Tree Walk for 2026
Take a guided walk through the historic Fuller Park with a UC Master Gardener to discover some of the many exotic and native trees there.Historic Fuller Park is an arboretum of many exotic and native…
Office Locations
UC Master Gardeners of Napa County
1710 Soscol Ave
Suite 4
Napa, CA 94559
United States
Phone