UC Master Gardener Program of Sonoma County

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UC Master Gardener Program of Sonoma County We are UC-trained volunteers providing sustainable gardening information & education to Sonoma County Contact: [email protected]

Master Gardeners are volunteers trained by the University of California (UC) Cooperative Extension. Through community service and educational outreach, we provide home gardeners and community organizations with the knowledge and skills to create a healthy home gardening environment for Sonoma County. The UC Master Gardener Program is part of a statewide network of UC Agriculture and Natural Resources programs. Master Gardeners are trained and certified UC volunteers whose mission is to provide unbiased, high quality, science-based information to non-commercial home gardeners in Sonoma County. Master Gardeners are given an extensive training program in plant science covering such topics as soil and plant nutrition, irrigation, weed-insect-disease control, vegetables, fruit trees and berries, landscape trees-shrubs-lawns-flowers, home composting and pesticide use alternatives. The UC Master Gardener Program of Sonoma County program has been extending information and providing technical assistance to home gardeners since 1982. We answer gardening questions and take a proactive role in extending information for community improvement. You can find all the links and our monthly newsletter we share on our LinkTree page: https://linktr.ee/sonomacountymg


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Join us Sunday October 18, 2026 from 2:00pm to 3:30pm at Cloverdale Regional Library for "Fall in a California Native Ga...
10/15/2026

Join us Sunday October 18, 2026 from 2:00pm to 3:30pm at Cloverdale Regional Library for "Fall in a California Native Garden Landscape"
As Fall is the perfect time of year to plan and implement the addition of native plants to a Sonoma County garden.

See comment for registration link

10/14/2026

Thank you to everyone who joined us at Nokhnoma on Sunday for the Children’s Jamboree & Marketplace! We enjoyed welcoming children, families and friends for a fun-filled day of learning, laughter, and making memories.

Video description: Images of children and adults enjoying activities at the Master Gardener Children’s Jamboree & Marketplace including making manzanita c***r, decorating rocks, and crafting cornhusk dolls, gratitude banners and floral crowns. Special participants are also acknowledged.

SUNDAYS WITH SUE:  In my mind, there is nothing more miraculous in the natural world than metamorphosis and none so prof...
10/11/2026

SUNDAYS WITH SUE: In my mind, there is nothing more miraculous in the natural world than metamorphosis and none so profound as that which occurs with butterflies and moths. Between the monarchs still flying around our home garden and the tomato hornworm I noticed hanging out on a plant at Nokhnoma, I marvel at how drastically different the insects can transform.

After a hubbub of activity - setting up tables, displays, signage, and seating for the Jamboree today (11am - 2pm, free and fascinating activities at Nokhnoma), I wandered through the garden looking at plants. My eye zeroed in on a light green, well camouflaged, tomato hornworm (technically, a “tobacco hornworm” as the tail is red, the tomato hornworm’s tail is black or brown). First taken back by its bizarre, otherworldly appearance and not worried about tomatoes being eaten (the ground squirrels already did that!!), I began to observe the creature more closely.

Looking back at me seemed to be several eyes along its body - so weird!! I imagine a predator like a bird might be a bit intimidated by so many eyes, however, parasitoid wasps will do this caterpillar in by depositing eggs inside the caterpillar that will literally eat their way out as they develop. The little teeth we see are primarily for munching on nightshade crops like tomatoes, eggplants, and peppers, which they can do very quickly. The caterpillar will go through five moltings (referred to as in-stars) where old skin is lost and new skin fits a larger body.

If this dinosaur of all caterpillars is not snatched by a bird, done in by a human, or parasitized by wasps, it will develop into a pupa that bores its way into the soil and will stay there over the winter. In spring, an adult will emerge as a striking hawk moth (also referred to as a sphinx moth, of the Sphingidae family), who will go on to pollinate many night blooming flowers. See the picture of the sphinx moth that Tobi Brown was kind enough to share with me. This transformation may be part of natures grand plan created to confuse and protect, and that it does very well when you look at the difference between the caterpillar and the moth!

We decided to leave the caterpillar, I’ll call “Harold”, in its place on the plant in the Children’s Garden. Who knows, Harold could be a main attraction at the Jamboree?! Come by the Jamboree, enjoy the fun, activities, and succulent and craft sale. Say “Hi” to Harold before he makes an exit! Learn lots about Monarchs, too! See more details on this page. Have a great week!

“Someday I will be a beautiful butterfly, and then everything will be better”. Joe Ranft as Heimlich on a “Bugs Life”

Grow, Learn, Play and Shop with Us! Sonoma County Master Gardeners have been busy planning, prepping and polishing off f...
10/09/2026

Grow, Learn, Play and Shop with Us!

Sonoma County Master Gardeners have been busy planning, prepping and polishing off final details for our third annual Jamboree. Join us on Sunday at Nokhnoma for a fun-filled, family-friendly day. We can't wait to see you! To register to attend and for more information: https://zurl.co/HRpRH

This FREE outdoor event for children and adults will include:

🍁YOUTH ACTIVITIES
Children will be able to make and take home some of the following items:
* Cornhusk dolls
* Floral crowns
* Garden art rocks
* Gratitude banners
* Paper Monarch butterflies
* Pipecleaner critters
* Suncatchers

🍁MARKETPLACE
Shop for 4-inch and 1-gallon succulents, succulent containers, succulent-topped pumpkins in assorted sizes, decoupage oyster shell ornaments, small and medium wreaths crafted with flora, cones, and/or succulents, gardening books and beaded light catchers. Cash, checks and credit cards accepted. All proceeds support the UC Master Gardener Program of Sonoma County.

🍁INFORMATION TABLES
Sonoma County Master Gardeners will share home gardening information, answer your home gardening-related questions and provide details about our programs and projects.

🍁PARTNER ORGANIZATIONS
* Children's Museum of Sonoma County
* 4-H Youth Development Program
* Girl Scouts of Northern California
* Petaluma Wildlife & Natural Science Museum
* Sonoma County Beekeepers Association
* UC Master Food Preservers
* Zero Waste Sonoma
* Windsor Community Garden



Photo credit: Sonoma County Master Gardener Lisa Howard

10/08/2026

Children’s Jamboree & Marketplace
Sunday, October 11, 2026
11 a.m. – 2 p.m.
Nokhnoma Demonstration and Teaching Garden
7464 Rancho Los Guilicos Road, Santa Rosa, CA

Join us this Sunday at Nokhnoma for our third annual Jamboree. This fun, FREE outdoor event for children and adults will include:

🍁YOUTH ACTIVITIES
Children will be able to make and take home some of the following items:
* Cornhusk dolls
* Floral crowns
* Garden art rocks
* Gratitude banners
* Paper Monarch butterflies
* Pipecleaner critters
* Suncatchers

🍁MARKETPLACE
Shop for 4-inch and 1-gallon succulents, succulent containers, succulent-topped pumpkins in assorted sizes, decoupage oyster shell ornaments, small and medium wreaths crafted with flora, cones, and/or succulents, gardening books and beaded light catchers. Cash, checks and credit cards accepted. All proceeds benefit the UC Master Gardener Program of Sonoma County.

🍁INFORMATION TABLES
Sonoma County Master Gardeners will share home gardening information, answer your home gardening-related questions and provide details about our programs and projects.

🍁PARTNER ORGANIZATIONS
* Children's Museum of Sonoma County
* 4-H Youth Development Program
* Girl Scouts of Northern California
* Petaluma Wildlife & Natural Science Museum
* Sonoma County Beekeepers Association
* UC Master Food Preservers
* Zero Waste Sonoma
* Windsor Community Garden

To register to attend and for more information: https://zurl.co/ECxg9

Are your growing food in your home or community garden?  If so, please consider taking a few minutes of your time to com...
10/07/2026

Are your growing food in your home or community garden? If so, please consider taking a few minutes of your time to complete the 2026 Sonoma County Home Gardener Survey! This survey was put together by Dena Rhus of the Sebastopol Produce Exchange along with Sonoma County Health Services Department to learn more about the produce being grown and shared by gardeners in Sonoma County. Please help us learn more about what’s being grown by home gardeners in Sonoma County!

The survey is running until December 31st 2026.
Find the link to the survey in the first comment below, our in our LinkTree if using Instagram😃

Photo description: Photo depicts a basket full of vegetables held by hands, against a bright green background with the words "What's Growing in Your Garden?"

Come Grow, Learn, Play, and Shop with Us!  Children’s Jamboree & MarketplaceSunday, October 1111 a.m. - 2 p.m. Nokhnoma ...
10/06/2026

Come Grow, Learn, Play, and Shop with Us!

Children’s Jamboree & Marketplace
Sunday, October 11
11 a.m. - 2 p.m.
Nokhnoma Teaching and Demonstration Garden*
7464 Rancho Los Guilicos Road, Santa Rosa

Our annual Jamboree is almost here! Join Sonoma County Master Gardeners and our partner organizations at this fun, FREE event for children and adults. To register to attend and for more information: https://zurl.co/djGCx This family-friendly outdoor event will include:

🍁MARKETPLACE
Shop for 4-inch and 1-gallon succulents, succulent containers, succulent-topped pumpkins in assorted sizes, decoupage oyster shell ornaments, small and medium wreaths crafted with flora, cones, and/or succulents, gardening books and beaded light catchers. Cash, checks and credit cards accepted. All proceeds benefit the UC Master Gardener Program of Sonoma County.

🍁YOUTH ACTIVITIES
Children will be able to make and take home corn husk dolls, floral crown wreaths, garden art rocks, gratitude banners, pipe cleaner critters and suncatchers.

🍁INFORMATION TABLES
Sonoma County Master Gardeners will share home gardening information, answer your home gardening-related questions and provide details about our programs and projects.

🍁PARTNER ORGANIZATIONS
4-H Youth Development Program, Girl Scouts of Northern California, Sonoma County Beekeepers Association, Children's Museum of Sonoma County, UC Master Food Preservers, Petaluma Wildlife & Natural Science Museum, Windsor Community Garden, and Zero Waste Sonoma.

*Formerly Los Guilicos Demonstration and Teaching Garden


April may be   But now is the time to plant it See comment to find out more about how to plant it
10/05/2026

April may be But now is the time to plant it
See comment to find out more about how to plant it

SUNDAYS WITH SUE:  Learning about life should start in a garden and who brings life to a garden better than a child?  Wa...
10/04/2026

SUNDAYS WITH SUE: Learning about life should start in a garden and who brings life to a garden better than a child? Watching a child explore and learn about nature suddenly gives more dimension and meaning to having a garden. With outdoor education, all the basics that are taught in a classroom can be translated and understood so clearly in a garden setting, a place in which children are already so enraptured.

Children can learn through native plantings how indigenous peoples used the plants for food, medicine, shelter, and daily living. When children physically help create a simple model village of plants, animals, and living quarters, it can place them in that time in history. Learning a couple of indigenous words like welcome and thank you helps children relate to the past.

Through our food plants, history is alive with crops that sustained our ancestors and still sustain humans over the course of a year. Toys, games, practical methods and implements for cooking, gardening, hunting, playing, and preserving are especially appreciated by children. Learning about the life of a seed, what it needs to grow, then planting one themselves can leave a lifelong impression on young minds.

The supporting ecosystems of insects and other wildlife are focused on in outdoor education. Reproductive parts of a flower and how pollen and nectar, transferred by pollinators, can support the propagation and spread of all plants are often eye opening concepts children and adults have not considered deeply. Being in an environment where a lizard, frog, bird, butterfly, or bee can scamper, fly, and flit by enhances the experience.

When children are reminded of their five senses (hear, touch, smell, taste, see) while examining plants and writing down their impressions, they become more aware of their surroundings. The realization that each plant has a purpose in nature, and some in our daily lives, creates ownership and protectiveness.

Through the composting and vermiculture (study of worms), children learn that rich soil depends on the death and decomposition of plants and the important role worms and other soil microbes play in that decomposition process. They see and touch the living soil of a worm bin, while learning about the anatomy and the movements of worms and other critters. Children are taught about how to build their own bin.

Ending a day where children write on ribbon banners what they are most grateful for has been a unifying effort at the Nokhnoma Teaching Garden. It gives children, teachers, parents, and garden volunteers a chance to reflect on the day the children were present. It also gives us the opportunity to see the value children place on a garden and their view of nature.

I write this in honor of Pat Decker, her team of volunteers, and all the teaching gardens throughout Sonoma County who value outdoor education. Come and see the garden at Nokhnoma and the Master Gardener volunteers from all of the teaching gardens at our Jamboree Oct. 11th 11am-2pm. Enjoy the day with your family while participating in activities.

To all of you who invite children and families into your gardens, you are golden. If you have not had a child visit your garden, invite one - you may discover something in your garden you may not have known before - through a child’s eyes. Have a great week!

“If children don’t grow up knowing about nature and appreciating it, they will not understand it. And if children don’t understand it, they won’t protect it. And if they don’t protect it, who will?”
David Attenborough, Broadcaster, Naturalist, and Writer

Come Grow, Learn, Play, and Shop with Us!  Children’s Jamboree & MarketplaceSunday, October 1111 a.m. - 2 p.m. Nokhnoma ...
10/02/2026

Come Grow, Learn, Play, and Shop with Us!

Children’s Jamboree & Marketplace
Sunday, October 11
11 a.m. - 2 p.m.
Nokhnoma Teaching and Demonstration Garden*
7464 Rancho Los Guilicos Road, Santa Rosa

Our annual Jamboree is almost here! Join Sonoma County Master Gardeners and our partner organizations at this fun, FREE event for children and adults. To register to attend and for more information: https://zurl.co/nDZJz This
family-friendly outdoor event will include:

🍁YOUTH ACTIVITIES
Children will be able to make and take home cornhusk dolls, floral crown wreaths, garden art rocks, gratitude banners, pipe cleaner critters and suncatchers.

🍁MARKETPLACE
Shop for 4-inch and 1-gallon succulents, succulent containers, succulent-topped pumpkins in assorted sizes, decoupage oyster shell ornaments, small and medium wreaths crafted with flora, cones, and/or succulents, gardening books and beaded light catchers. Cash, checks and credit cards accepted. All proceeds benefit the UC Master Gardener Program of Sonoma County.

🍁INFORMATION TABLES
Sonoma County Master Gardeners will share home gardening information, answer your home gardening-related questions and provide details about our programs and projects.

🍁PARTNER ORGANIZATIONS
4-H Youth Development Program, Girl Scouts of Northern California, Sonoma County Beekeepers Association, Children's Museum of Sonoma County, UC Master Food Preservers, Zero Waste Sonoma, and Windsor Community Garden.

*Formerly Los Guilicos Demonstration and Teaching Garden

Address

133 Aviation Boulevard, Ste 109
Santa Rosa, CA
95403

Opening Hours

Monday 9am - 12pm
1pm - 4pm
Tuesday 9am - 12pm
1pm - 4pm
Wednesday 9am - 12pm
1pm - 4pm
Thursday 9am - 12pm
1pm - 4pm
Friday 9am - 12pm
1pm - 4pm

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