Program: A seed and plant exchange where library patrons can get seedlings and seeds to plant, information on planting wildflower seeds and other pollinator seeds, and other planting information from Marin Master Gardeners. Venue: Civic Center Library, Room 427 Cost: Free

Does your current irrigation system exceed 90% efficiency getting water to the root zones of your plants? This presentation will provide options and key considerations for drip irrigation to put the right amount of water in the right place when plants need it without excess runoff, over-spray, or waste. Learn how a garden water meter can be a useful tool to help understand your plants’ water requirements. This informal presentation will have plenty of time for questions and answers. This is an in-person event. Registration is encouraged. 

Daily Acts and Casa Grande High School are teaming up to transform grass to gardens in front of the school! This summer Daily Acts sheet mulched 3 sections of lawn and fall is the right time to to get native & climate appropriate plantings in the ground for winter rains! Help create a water-wise landscape that will build habitat and bring beauty to the school community for years to come. NOTE: All are welcome (including children with adult supervision) and no experience needed Come for some, or come for all —  gather rain or shine! What’s provided: FREE Lunch & Snacks Instruction &…

Fall is the perfect time of year to plan and implement the addition of native plants to a Sonoma County garden. A garden with California natives will increase the biodiversity in your garden space, and support local ecosystems most efficiently. This is best accomplished with additional garden maintenance considerations as well. Tips for plant selection and care will also be discussed.

Join Master Gardener April Lynch for a virtual walk amongst the Northern California native oaks. Follow her footsteps through chaparral, woodlands, and forests for up close and personal lessons featuring our magnificent native oak trees and shrubs. Learn about the family tree, view microscopic oak flowers, and discover the amazing variety of acorns, leaves and more in this colorful presentation. The high-definition collection of photographs that she took over a 17-year period is arranged in a meaningful, artistic fashion for your education and enjoyment. April will discuss the role the oak plays as a keystone species. A keystone species is an…

Trick-or-Treatment: Mysteries of the Laguna Treatment Plant Saturday, October 17, 2026 | 10 a.m. to 2 p.m. Laguna Treatment Plant | 4300 Llano Road, Santa Rosa Free Halloween Open House This Halloween, Santa Rosa Water is opening the doors (creaky noise) to the Laguna Treatment Plant for Trick-or-Treatment: Mysteries of the Laguna Treatment Plant, a free and spooky open house where the community can get a behind-the-scenes look at how wastewater is treated and learn more about the people, science and equipment that help keep our community healthy and our waterways clean and protected. Family-friendly costumes are encouraged. Join for…

Sonoma Water’s Water Year Update: Water Year Wrap-up webinar offers a concise look at the past water year’s rainfall, current reservoir conditions and what they mean for water supply and flood protection. The presentation will look at how Lake Mendocino and Lake Sonoma are performing, how the Forecast-Informed Reservoir Operations program is shaping real-time decisions and what to expect going into the next water year with a very strong El Niño. Register for the webinar at https://scwa-ca-gov.zoom.us/webinar/register/WN_RAcUjP8hRtKBjXjMyWF2JA. Speakers: • Rebecca Hermosillo, Chair, Sonoma Water Board of Directors • Jeanine Jones, Consultant, Sonoma Water • Nick Malasavage, Chief, Operations and Readiness Division, U.S. Army Corps of Engineers…

Learn how to create and maintain a fire-wise, sustainable garden that supports biodiversity while meeting County code requirements. The Resilient Landscapes Coalition can help you with plant selection, placement, and maintenance to preserve and even enhance wildlife habitat, while keeping your property and neighborhood fire-wise and sustainable. Recommendations for fire-wise landscaping in the 0-5’, 5-30’, and 30-100’ defensible space zones, with specific plant and design suggestions. In partnership with the Santa Rosa Garden Club. This is an official meeting of the Santa Rosa Garden Club, but the general public is welcome to join for the speaker session at 2pm.

NOTE: This event has already occurred. Visit Russian Riverkeeper for future events. This year marks the 40th Annual Russian River Watershed Cleanup, one of the biggest environmental volunteer events in Sonoma County! It was held at sites around the Russian River Watershed on September 19th, 2026. Join Russian Riverkeeper in their annual tradition of gathering together and caring for the river by helping remove the trash and plastic pollution that has been building up since their last cleanup. Every year, hundreds of volunteers come together to protect the Russian River before the winter rains carry litter to the ocean. In…

Love gardening but short on space? Discover how to grow vibrant native plants in containers! Perfect for apartment dwellers, beginners, and anyone interested in making a lasting connection with plants. Join the Laguna de Santa Rosa Foundation, California Flora Nursery, and Ag + Open Space for a fun, hands-on, in-person workshop.

Do you have a lamp, small appliance, textile, or bike in need of repair? Bring it to the Repair Fair! Volunteers and specialized repair professionals will be on-hand to repair* your items. Please stay with your item while it’s being fixed, so you can learn tips for future maintenance, how to shop for repairable goods, and even how to repair things yourself! If you’d like to bring an item to repair, please register the item here. (Pre-registering allows them to prepare for your item!) This event will also include a Holiday Swap & Clothing Swap! Bring holiday decor, clothing and accessories to share and take…