Below is a quick-reference guide to events currently offered, listed by organization. Details and further information for all events listed can be found in our Calendar. Websites for each organization listed are given for your convenience.
California Botanical Society
California Botanical Society (CBS) offers monthly academic botany talks through their botany speaker series, and sponsors a Graduate Student Symposium every other year. Their website is at https://calbotsoc.org/
- October 8, 2026. Presentation. Botany Speaker Series: Kate Ostevik, Department of Evolution Ecology and Organismal Biology
California Invasive Plant Council
California Invasive Plant Council (Cal-IPC) offers training sessions when their budget allows. Symposia continue to be offered yearly. Visit Cal-IPC at https://www.cal-ipc.org/.
- October 20-22, 2026. Symposium. 2026 Cal-IPC Sumposium: Think Globally, Weed Locally!
California Native Grasslands Association
The California Native Grasslands Association (CNGA) offers various events throughout the year. For details and registration information, please go to cnga.org.
California Native Plant Society
CNPS offers periodic workshops and professional training courses. Discounted registration fees are available to CNPS members. See https://www.cnps.org/education/workshops for full descriptions and registration information.
Friends of the Ahart Herbarium
Friends of the Ahart Herbarium (formerly Friends of the Chico State Herbarium) offers workshops and presentations throughout the year. Their events calendar is at http://friendsoftheahartherbarium.org/
Friends of the Jepson Herbarium
Friends of the Jepson Herbarium offers weekend workshops, most of which will be in person, and mini-workshops, all of which are virtual. All require pre-registration and fees. (Wait-listed workshops are not included in the following list.) Details can be found at ucjeps.berkeley.edu/workshops/
- October 3-4. 2026. Presentation. Carex: Sedges Demystified
Horsetown-Clear Creek Preserve
Horsetown-Clear Creek Preserve (HCCP) sponsors a series of outdoor events each spring and fall. Events typically start at the HCCP parking area on Clear Creek Road, about 7 miles west of Highway 273, just west of the Clear Creek bridge, and are free. Please see horsetownclearcreekpreserve.org for further information.
- October 17, 2026. Field Trip & Workshop. Wildlife Tracking with Emily Culhane
Mount Lassen Chapter CNPS
Mt. Lassen Chapter CNPS, based out of Chico, offers many fun field trips and presentations throughout the year. Their website is https://mountlassen.cnps.org/
- October 25, 2026. Gardening. Fall Native Seed Swap
North Coast Chapter CNPS
North Coast Chapter CNPS, headquartered in Arcata, is a busy chapter that sponsors plant sales, wildflower shows, walks, talks, field trips, and camping and backpacking adventures. They have monthly evening programs that can be found on their calendar. Their website is https://northcoastcnps.org/
- October 3, 2026. Garden Tour. Native Plant Garden Tour
- October 11, 2026. Field Trip. Salmon Pass Trail
- October 20, 2026. Field Trip. Dune Plant walk at Digawututklh
- October 20, 2026. Presentation. New Calflora Tools for Native Plant Adventures
Pollinator Project Rogue Valley
They offer native plant and pollinator events throughout the year. Visit https://www.pollinatorprojectroguevalley.org/events for more information
- October 11, 2026. Workshop. Attention, Curiosity, Wonder: An Introduction to Nature Journaling
- October 11, 2026. Plant Sale. Fall Native Plant Sale
- October 17, 2026. Workshop. Designing for Pollinators: Plan, Plant & Pollinate!
- October 25, 2026. Presentation. Film Screening: In Our Nature
Shasta Birding Society
Shasta Birding Society offers birding excursions and presentations all year long. Their website is at http://shastabirdingsociety.org/calendar
- October 3, 2026. Field Trip. Bird Walk- Anderson River Park
- October 17, 2026. Field Trip. Bird Walk – Turtle Bay Bird Sanctuary
Shasta Chapter CNPS
Shasta Chapter CNPS sponsors a diverse array of activities and events throughout the year, all of which will be posted on this blog site. Please see our website at https://chapters.cnps.org/shasta/ for more information about our chapter.
- October 2&3, 2026. Plant Sale. Fall 2026 Native Plant Sale
Shasta Environmental Alliance
Shasta Environmental Alliance (SEA) has many diverse events and activities running throughout the year. See their website at https://www.ecoshasta.org/.
- October 1, 2026. Presentation. Redding City Council Candidate Forum
- October 24, 2026. Field Trip. Families in the Forest
Shasta Land Trust
Shasta Land Trust’s Wildways series of fundraising events begin in April and run through the rest of the year. All events require fees and reservations. For further information, visit their site at https://www.shastalandtrust.org/.
Siskiyou Satellite of the Shasta Chapter of Native Plant Society of California
Sierra Club | Shasta Group (Motherlode Chapter)
The Shasta Group of the Motherlode Chapter of Sierra Club is based in Redding and focuses on the greater Mt. Shasta area. Their website is https://www.sierraclub.org/mother-lode/shasta Sierra Club | Shasta Group (Motherlode Chapter)
Siskiyou Field Institute
Siskiyou Field Institute (SFI), based out of Deer Creek Center in Selma, Oregon, offers many classes and field courses on a diverse set of topics throughout the year. All classes require reservations and fees. SFI’s website is at https://siskiyoufieldinstitute.org/events.
- October 10, 2026. Workshop. Travel Journaling With Watercolor
The Nature Conservancy
The Nature Conservancy (TNC) sponsors occasional field trips throughout the year. Contact information varies with event, and is provided with every listing. Their Events: https://www.nature.org/en-us/get-involved/how-to-help/events/
Turtle Bay Exploration Park
Turtle Bay’s McConnell Arboretum & Botanical Gardens Nursery offers occasional presentations, weekly walks through their botanical garden, and an annual plant sale. Turtle Bay Exploration Park website is at https://www.turtlebay.org/
- October 10, 2026. Presentation. Plant Talk- The Basics of Rainwater Harvesting
- October 17, 2026. Presentation. Plant Talk- Tree Selection and Care
US Forest Service
The US Forest Service provides presentations, field trips, and volunteer opportunities throughout the year. Contact information varies with sponsoring forest; details are provided for each event listed.
& More!
Here are the now-and-then events that don’t fit in any of the above categories, but are nonetheless worthwhile and of great interest to California’s native plant lovers!
