Classes, Field Trips & Workshops

Our schedule of fun and informative classes, field trips, and workshops offers something for every native plant lover. Choose from our changing selection of classes on natural history, field trips to wild California, and workshops on gardening.

We can now accept credit cards!

To enroll, print out the Class Registration Form and send it with your check made out to The Regional Parks Foundation or your credit card information to:

Regional Parks Foundation
c/o Linda Blide
3249 Monterey Blvd.
Oakland, CA 94602-3561

For additional information email Linda Blide at

(Advance registration is required for all classes. Drop ins are not permitted.)


Classes – July until December 2018


Instructors Bios

Bob Case holds a MA from SFSU in Ecology and Systematics. Bob taught college biology locally for 25 years. He retired as a Deputy Ag Commissioner from Contra Costa County. He has taught classes and given lectures at the Regional Parks Botanic Garden on insects, photography and natural history since 1985. He has written articles for Garden publications and his photographs have appeared in many brochures, books and articles.

Tanya Drlik is the Integrated Pest Management Coordinator for Contra Costa County. She began her career with the UC Berkeley team that created the idea of urban IPM and has provided IPM training for a wide variety of audiences from undergraduates and homeowners to pest management professionals including ECO-Wise Certification for Pest Control Operators and the Our Water Our World Program.

Sasha Duerr is an artist and designer who works with plant-based palettes and natural dyes. She is a professor at the California College of the Arts with a joint appointment in textiles and fine arts where she designs curriculum and teaches courses in the intersection of natural color, slow food, slow fashion and social practice. Her work has been featured in the New York Times, American Craft Magazine, Selvedge, and the Huffington Post. She is the author of The Handbook of Natural Plant Dyes (Timber Press/Workman 2011) and Natural Color (Watson-Guptill/Ten Speed Press 2016).

Katherine Greenberg
is a garden designer and author, has been growing California native plants for over 35 years. She is the founding president of the Friends of the Regional Parks Botanic Garden and a past president of the Mediterranean Garden Society and Pacific Horticulture Society. Katherine
is currently a member of the UC Botanical Garden Advisory Board.

Glenn Keator is a popular freelance instructor of botany in the Bay Area.
He currently teaches, leads field trips, and provides docent instruction in botany for the Regional Parks Botanic Garden. He is the author of a number of books
on native plants.

Charlie Kennard of San Anselmo is a long-time basket weaver and student of California Indian and European techniques. He has taught for MAPOM, Point Reyes Field Institute, the Laguna de Santa Rosa, and in many schools and at teacher trainings. You can visit a basketry plant garden he has created at the Marin Art and Garden Center in Ross.

Kiamara Ludwig is a horticulturist presently employed at the Botanic Garden. She is also a founding member of the CNPS Bryophyte chapter.

Judi Pettite is a visual artist and art instructor from San Francisco. She makes pigments, ink, paint and pastels from plants, mushrooms, insects and earth.
She is keenly interested in creating art mediums that are as lightfast as possible while maintaining the integrity of the pigment.


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