BD will organize and host the first Ethnobotany Festival here in Occidental, CA, on Saturday, Sept. 24. We are excited to have secured the Occidental Center for the Arts for the event. OCA is the location host of BD’s exceptional Ethnobotany Library, but the festival will expand to offer so much:

  • Talks and slideshows by special guests, in the 200-person auditorium
  • Hands-on demonstrations in using plants to make things: tools, baskets, fiber, dyeing, carving
  • Join open-air classes in making string from plant fibers, dyeing fibers with plants and fungi, weaving, more
  • Native plant foods – how to grow, harvest and prepare them
  • Global ethnobotany practices – healing, shamanism, poetry, smudging, limpias, adornment
  • Rich storytelling of the origin myths and relationships of plants to other beings in nature, from various cultures
  • Ethnographic films about plant practices and beliefs in various cultures
  • Good food/drink for sale. Try new tastes.
  • Art on display and for sale – all related to plants, fungi and culture.
  • Library open, some books for sale too.
  • Much more is being arranged now – Stay tuned! Join BD’s email list here and follow us on Facebook.
  • This is an educational offering to the extended community. It is also a fundraiser for BD! Volunteer to help if you wish, in trade for entry to the festival. Contact



New Spring 2016 CLASSES with ethnobotanist Kathleen Harrison

by Botanical Dimensions on 02/12/2016

Sign up now! Or sign up on the mailing list to learn about our future class offerings. 

* Global Ethnobotany with a Local Focus

~ A popular 4-month series, one Saturday per month. A survey of the breadth and depth of cultural relationships between plants, fungi and humans—from ancestral folk knowledge to 21st century practices. Group study, discussion, excellent participants. Slideshows, stories, books, walks in local nature to learn local plant uses. New dates! Begins April 9. Learn more & register here:

* Big Botanical Beings in Modern Culture: A speculative workshop on the roles of Magic Mushrooms, Peyote & Ayahuasca -

~A one-day talk & discussion on this timely, deep and perplexing subject. Kat’s expertise is based on decades of fieldwork in various cultures, including deep immersion in late 20th century West Coast psychedelic subculture. Sat. May 7. Learn more & register here:

* Food Plants & Spices: Their Stories in Our Story

~New class offering! A weekend workshop on the botany and history of what we love to eat. Revelations to deepen the experience of each meal. People who love food, spices, stories and a fascinating history will be sure to learn and enjoy. Sat.-Sun. June 4-5. Learn more & register here:

Botanical Illustration: Learning to really see & draw plants

~A one-day workshop for all levels, with Kat & guest teacher Paetra Tauchert, Sat. July 2. Materials provided. Learn more about the approach & register here:

Our challenge grant needs rain now! Donations = Rain. Please give!Old Douglas Firs, Camp Meeker
Like the forests and meadows, at Botanical Dimensions we appreciate the rain and snow that California is finally receiving, after years of drought. Our oak and chapparal-covered hills are reveling in moist green. We know the fungi are having a blast, awakening underground and sprouting on the surface.
At BD, we so appreciate the nourishing donations that you folks donate to keep ethnobotany studies alive. Many have given to our matcing fund and we THANK YOU. We still need to raise $2800 in the next four days, by the end of Dec. 31, in order to receive the matching grant of $4800. Please donate if you can, and share this request. (And look outside at what grows when it is nourished.)


Generous donors have given $4800 that we must match in the next few days, by 12/31/15. Please make a year’s-end tax-deductible donation to support our projects, studies, classes and the new Ethnobotany Library. Become a member for merely $35/year, or give as generously as you can at any amount. Click the DONATE button here, or [...]

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The new library of Botanical Dimensions holds a treasure trove of books, periodicals and articles on all aspects of wide-ranging ethnobotany: Certainly lots on plants (botany) and fungi (mycology), but also ecology, indigenous knowledge systems, biodiversity, natural philosophy, mythology, anthropology, herbal medicine, botanical illustration, and much more. We have a featured section on visionary plant [...]

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Ethnobotany Library Opening Event Saturday, November 14, 2015 in Occidental

At Botanical Dimensions, we are excited to announce the public opening of our unique Ethnobotany Library here in West Sonoma County. Our collection begins with one thousand books and journals from the collection of ethnobotanist Kathleen Harrison and several other generous donors. Please come celebrate our opening day, peruse the wonderful range of books, and [...]

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