Ongoing research

HLB Leaf

HLB Quarantine Expands into Commercial Citrus

January 15, 2026
By Ben A Faber
Agriculture officials have expanded the areas quarantined for citrus greening disease (known as huanglongbing or HLB) in California. The quarantined area in the Corona area of Riverside County was expanded by 37 square miles. The San Juan Capistrano quarantined area of Orange County was expanded by 18 square…
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UC Master Gardeners of Butte County: Event

Care and Maintenance: Considerations in Garden Planning NEW

Feb 25, 2026

In this workshop, we look at how maintenance requirements may factor into your garden choices. Flower growth habits, longevity, irrigation, sun and soil needs—these considerations and more make a difference in how much time you devote to your plants. We identify and address issues such as: How long will the…
UC Master Gardeners of Butte County
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ice or frost closeup
Under the Solano Sun: Article

Baby It's Cold Outside-Protect Your Plants

January 15, 2026
By Jennifer M Baumbach
Blog by Brenda Altman  When the temperature drops, you have to protect your temperature-sensitive plants. For myself, it’s my 4-year-old avocado tree.  To date, it has not flowered. I want it to survive another winter. Previously, I just put a plastic bag over it when the temperature was near…
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UC Master Gardeners of Butte County: Event

Plant Selection and Planting Techniques NEW

Feb 18, 2026

This class will cover what to plant in various situations, such as raised beds, pots, grow bags, and in the ground. We will discuss planting methods like square foot gardening and lasagna gardening, and explain different techniques for growing plants, such as seed starting, winter sowing in jugs, and soil…
UC Master Gardeners of Butte County
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UC Master Gardeners of Butte County: Event

Choosing and Preparing your Flower Garden NEW

Feb 11, 2026

This workshop will help you get started with the flower garden of your dreams or sharpen and hone the flower gardening skills you already have. From the fundamentals of flower garden planning through site selection and preparation, seed starting, propagating, and the basics of garden design—we’ve got it all…
UC Master Gardeners of Butte County
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UC Master Gardeners of Butte County: Event

Seed Starting

Feb 3, 2026

Would you like to plant different varieties of summer vegetables than those that are available at the big box stores as starts? Learn to start your own plants from seed, and you can choose any variety you’d like! Our focus will be tomatoes and peppers. You say you don’t have a heated greenhouse? Not to worry…
UC Master Gardeners of Butte County
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companion planting, uc san diego
UC Master Gardeners of Santa Clara County: Event

MRDG Learn About Companion Planting and Do a Little Sketching - Cupertino

Jun 20, 2026

Come learn about companion planting and have fun sketching a few of the plants. UC Master Gardener Jasmine Martinez will share her love of gardening and drawing. You will learn about a few companion plants and how to use them in your gardening. Afterward, you will go into the garden to sketch a plant of your…
UC Master Gardeners of Santa Clara County
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Storer Lecture

Storer Lecture: 'Why Cooperate? Mutualism in the Natural World'

January 14, 2026
By Kathy Keatley Garvey
 "Biologists have always been fascinated by strife and conflict, but cooperative exchanges, involving all species and networking large numbers of them into complex communities, are ubiquitous in the natural world. This talk will describe our current understanding of mutualism as well as the questions…
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Learn to start tomato plants from seed at the upcoming Seed Starting Workshop. Kristina Thompson
The Real Dirt: Article

Spring 2026 Workshop Series Part I

January 14, 2026
The Spring 2026 Series of Master Gardener Workshops begins Tuesday, February 3 with a timely session on starting summer vegetable plants from seed and concludes in mid-May with a workshop on creating a bird-friendly garden of native plants. In all, this Spring 2026 Series totals 17 workshops, including seven…
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