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David’s commitment to excellence has created a beautiful community of talented and knowledgeable herbalists.
Learn MoreClick here to apply for the 2026-28 class!
Learn MorePhoto courtesy Rich Mandelbaum, RH
Learn MoreLearn 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.


David spoke on Adaptogens: The great rejuvenators
Learn MoreDavid discusses the wonders of Roses with Rosalee on her amazing podcast series. Click here to get the full recipe card.
Learn MoreListen to the Five to Thrive podcast here!
Learn MoreDavid is inner-viewed in episode 1 of Rosemary’s amazing new series.
Learn MoreWorking in the herbal supplement world, this course was a great foundation for me to help improve our formulations and make sure that we are doing the best possible job creating products that are effective and true to the herbal tradition. Not previously a clinician, this course has given me the confidence to start working with clients and I feel much more connected with the greater herbal community having learned from David. I really appreciated having such a diverse array of earnest students as my classmates. From Ayurvedic practitioners, acupuncturists and TCM practitioners, to MDs, massage therapists, to veterinarians I learned a lot from my classmates in addition to the mountain of learning we received from David. Thanks so much for a well organized and thorough program!