UC Master Gardener Program

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An adult goldspotted oak borer on an oak leaf. Photo by Mike Lewis, Center for Invasive Species Research, Bugwood.org.
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The Growing Threat to Our Trees - Online

Event Date
Oct 1, 2025

 California’s forests and urban landscapes face growing threats from invasive tree pests like beetles and fungi, which have already killed hundreds of thousands of trees across the state. Join forestry expert Beatriz Nobua-Behrmann for an educational webinar exploring important invasive pests that…
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Become a Sonoma County Master Gardener
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Curious about becoming a UC Master Gardener?

Event Date
Aug 23, 2025

Do you have a love for gardening and a heart for community service? Now’s your chance to turn your passion into purpose! Applications are now open for the UC Master Gardener Program of Sonoma County’s Class of 2026.UC Master Gardeners volunteer their time and expertise to help local residents with all…
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Golden mussels, invasive aquatic pests. Photo by Paige Kuczmarski, Alberta Invasive Species Council, Bugwood.org.
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Protect California’s Waters from Invasive Species - Online

Event Date
Sep 3, 2025

The introduction and spread of invasive species in California’s waterways have wide-ranging consequences, from impeding water delivery systems to damaging recreation areas and wetland ecosystems. In this webinar, Martha Volkoff from the California Department of Fish and Wildlife’s Invasive Species Program…
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Become a Sonoma County Master Gardener
Event

Curious about becoming a UC Master Gardener?

Event Date
Aug 16, 2025

Do you have a love for gardening and a heart for community service? Now’s your chance to turn your passion into purpose! Applications are now open for the UC Master Gardener Program of Sonoma County’s Class of 2026.UC Master Gardeners volunteer their time and expertise to help local residents with all…
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Become a Sonoma County Master Gardener
Event

Curious about becoming a UC Master Gardener?

Event Date
Aug 16, 2025

Do you have a love for gardening and a heart for community service? Now’s your chance to turn your passion into purpose! Applications are now open for the UC Master Gardener Program of Sonoma County’s Class of 2026.UC Master Gardeners volunteer their time and expertise to help local residents with all…
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Garden Scene Investigator - Zoom
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Be A GSI: Garden Scene Investigator - Zoom

Event Date
Aug 27, 2025

Is it a bug?  A furry critter?  Fungus or disease?  Learn how to look for evidence when something attacks your plants.  Evidence can lead to the culprit, which will help identify the Integrated Pest Management solutions that will keep your garden healthy. As part of this special monthly…
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Beneficial Bugs - Yorba Linda
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Beneficial Bugs - Yorba Linda

Event Date
Aug 27, 2025

Not all bugs are created equal. The difference between those that are beneficial and those that aren’t is whether they savor your plants and crops or if they have an appetite for other insects. Beneficials fall in the latter category and have the specific role of supporting the balance of nature. The UC…
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Image A black fig fly laying eggs inside a green fig. A black fig fly depositing eggs into a fig fruit. Photo by Houston Wilson, Dept. of Entomology, UC Riverside.
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Invasive Pests in Your Edible Garden - Online

Event Date
Aug 6, 2025

 Don’t let pests take a bite out of your harvest! Join UC's Integrated Pest Management team as they kick off an invasive species mini-series with an informational webinar on invasive pests that impact your edible garden. This session will cover a range of species that can damage plants like citrus,…
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Beautiful Bulbs - Fullerton
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Beautiful Bulbs - Fullerton

Event Date
Aug 27, 2025

Discover the beauty, ease and simple steps for successful gardening with bulbs. UC Master Gardeners of Orange County will show you the differences between true bulbs, corms, tubers/tuberous roots and rhizomes.  Find out how to plant them, including soil preparation and depth – and which ones become…
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A Year of Good Food - San Clemente
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A Year of Good Food - San Clemente

Event Date
Aug 27, 2025

You can’t do it all in one day, or even one month – it takes at least a year to accomplish all the gardening activities. UC Master Gardeners of Orange County will tell you how to do it, month by month.  Learn when to plant which veggie, keeping fruit trees productive, pruning, mulching, starting…
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