David's Events

Apply now! Interviews for the class of 2026-28 will begin in the early spring of 2026.

Class begins in the fall of 2026 and continues through the end of summer 2028.

Questions?  Contact Eileen at office@dwherbal.com.

Free Class-June 25th, 2026-Zoopharmacognosy, How Animals use Herbal Medicine in the Wild-Rich Mandelbaum

Have you ever wondered how people discovered and developed the safe and effective use of botanical remedies in the first place? Fascinating conversations almost always follow this question, but what if it’s the wrong question to be asking?

In reality, herbal medicine is far older than humanity, and not every herbalist is human. It is now well-documented both anecdotally and increasingly in the scientific literature that animals regularly and deliberately ingest medicinal and psychoactive plants and fungi. In addition, cultures around the world maintain animal-usage origin myths of sacred, ceremonial, and medicinal plants. In this class we’ll review the current published research in the growing field of Zoopharmacognosy – the study of how animals utilize natural remedies for the prevention and therapeutic treatment of disease. And perhaps most importantly, we’ll discuss what this all means for us as herbalists and people who use herbal remedies, and its profound impact on our relationship to our fellow animals, the plants, and the planet.

Listen to David’s Talk on Adaptogens at the Real Truth About Health Conference

Anatomy and Physiology course, presented by Wendy Warner, MD, ABIHM, IFMCP and Andrew Appello, DACM, MSN, L.Ac., APN, RH(AHG)!

Learn A&P with our very own Wendy Warner, MD, ABIHM, IFMCP and Andrew Appello, DACM, MSN, L.Ac., APN, RH(AHG) available here! They are wonderful teachers and have a depth of knowledge on anatomy and physiology (as well as many other topics), especially as it pertains to clinical practice, that few others can offer.  We believe you will find this class not only highly educational but deeply relevant to becoming a clinical herbalist.

From our students:

“This A&P course was extremely well-organized and proceeded on a lesson gradient with each body system connecting to the next. The herbal knowledge spread throughout the course helped to bridge the gap between how herbs and different parts of the body work together to achieve balance. It lays out a thorough foundation for any non-science degree individual looking to prepare for serious herbal studies.”-Kate McKinley

““I found this course to be exceptionally well-designed — an exciting and accessible entry-point into the study of anatomy and physiology. In particular, I appreciated the integrative approach which underlies this program, which is co-taught by a licensed acupuncturist, nurse practitioner and clinical herbalist and by a physician herbalist, each with years of experience in working between conventional clinical medicine, herbalism and other traditional healing modalities.” -Sarah Epstein

Listen to David’s interview on the Herbcast podcast

David spoke on Adaptogens: The great rejuvenators

What our students are saying….

David’s commitment to excellence has created a beautiful community of talented and knowledgeable herbalists.

David’s interview with Rosalee de la Floret

David discusses the wonders of Roses with Rosalee on her amazing podcast series. Click here to get the full recipe card.

David discusses Managing Stress with Adaptogens with Lise Altschuler

Listen to the Five to Thrive podcast here!

Voices of our Herbal Elders Podcast with Rosemary Gladstar

David is inner-viewed in episode 1 of Rosemary’s amazing new series.