The UC Master Gardeners of Humboldt and Del Norte Counties offer free classes, workshops, and events year-round. Our programs are designed for home gardeners of all experience levels. Whether you're just starting your first vegetable garden or you've been gardening in our communities for decades, there's something for you.
Our events include hands-on workshops on topics like pruning fruit trees, starting plants from seed, composting, and water-wise landscaping. Some events may require registration to ensure we have enough space and supplies.
Review the topics below; some of our presentations have been recorded and are available on YouTube. The video links are listed with the titles. Special thanks to Access Humboldt for this service.
We add new workshops throughout the year, so check back often!
No More Naked Winter Gardens
Saturday, September 19, 2026.
12 - 1:30 pm
Humboldt County Library, 1313 3rd Street, Eureka, CA
Free. Registration not required.
Naked gardens are a magnet for every weed imaginable!
This winter, plant low-maintenance garlic and fava beans in those empty spaces.
By late spring, you will have avoided the weeds and weeding, and you’ll also have two of the most delicious foods your garden can grow.
University of California Master Food Preservers and Master Gardeners Jennifer Bell and June Walsh will show you how to grow, harvest, and preserve garlic and fava beans, and you'll have an opportunity to taste some wonderful recipes highlighting their unique flavors!
Fun with Kitchen Scraps: All About Vermicomposting
Saturday, August 15, 2026
12:00 - 1:00 pm
Humboldt County Library, 1313 3rd Street, Eureka, CA
Vermicomposting is a simple and fun way to turn food waste into nutrient rich fertilizer using specialized worms.
Join UC Master Gardener Merry Birchfield for a demonstration and discussion about composting with worms. Free.
Salad with Flowers? An Easy Container Garden
Saturday, July 18th, 12:00 - 1:30 pm
Humboldt County Library, 1313 3rd Street, Eureka, CA
Growing a container of salad greens and edible flowers makes a lovely little garden for your porch, deck, or windowsill. Mix and match colors, textures, and flavors—spicy, sweet, fragrant, or crunchy.
Join UC Master Gardener Marie Reeder for tips on creating a delicious container garden for your next bowl of salad. Free.
What's Wrong with My Plant? Basic Tools of Plant Diagnosis for the Home Gardener
Saturday, June 20, 2026
Humboldt County Library,
1313 3rd Street, Eureka, CA.
Free. Pre-registration not required.
Explore some of the causes of plant problems, how to identify them, and possible solutions.
Kathy Kosta, UC Master Gardener, is a retired plant pathologist with over 38 years of experience.
Gardening for the Birds
Saturday, May 16, 2026, 12 pm - 1:30 pm
Humboldt County Library, 1313 3rd Street, Eureka, CA
Free. Pre-registration not required.
Using your yard to cultivate essential habitat for birds begins with one simple idea: the right plant in the right place. By adding the right native plants, you can create a garden that’s not only beautiful but alive with nutritious insects, seeds, and berries. These resources can give birds the food and refuge they need throughout the year.
Master Gardener, Jody Greaney, brings over 30 years of experience as a science educator to this work. A lifelong plant and bird enthusiast, she loves sharing practical, science-based guidance to help gardeners bring new life into their yards.
Firewise Gardening:
Fire Safe Solutions for Design, Building, and Upkeep
Saturday, April 18, 2026, 12:00 - 1:30 pm
Humboldt County Library, 1313 3rd Street, Eureka
Free. Pre-registration not required.
Yana Valachovic, Forest Advisor and County Director - Humboldt & Del Norte Counties, Fire Network Community Resiliency and Build Environment Program Lead, serving California
From Seed to Garden Planting
Saturday, March 21, 2026
Join UC Master Gardener Heather Roche-Waldo for tips for starting plants from seeds and getting your garden growing.
All About Peat: Natural History & Human Uses
Saturday, February 21. 2026
Presented by Marie Antoine.
Save the Date—2026 Master Gardener Speakers Series
March 21, 2026—From Seed to Garden Planting
April 18, 2026—Firewise Gardening
May 16, 2026—Gardening for the Birds
June 20, 2026 —Diagnosing Plant Diseases
July 18, 2026—Salad with flowers? An easy container garden (please note this replaces Honeybees in the Garden)
August 15, 2026—Vermicomposting with Kitchen Scraps
September 19, 2026—No More Naked Gardens
October 17, 2026—Avoiding Compost and Mulch Mistakes
November 21, 2026—Bulbs, Tubers, Rhizomes & Corms, Oh My!
We add new events throughout the year, so check back often!