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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 MoreFrom David Winston I learned an impeccable integrity of practice, demanding standards of looking at the whole person, and intimate knowledge of a 300-plant materia medica. Our class, whether on-site or on-line, has been a community, puzzling together over our triune formulas and case histories. This is an international web of students–from a dozen countries–present in the classroom over our two or three years together. In class we learned the heart and landscape of David’s lineage in traditional medicine, along with Western, Chinese, Ayurveda and Middle Eastern herbal traditions. We worked with a unique, large-scale Additional American materia medica.
David stands out as a synthesizer and innovator of healing traditions and disciplines, a master teacher in herbal practice, an historian of the Eclectic and Physiomedicalist movements that shaped American herbal practice. As a founding member of the American Herbalist Guild, he helped lay the foundation, standards of practice, and educational mission that supports the growth of herbal practice in the United States.
Remember–our class is product of a 40-year teaching career. At our best, we students carry the integrity of David’s clinical practice, his love of the plants, solid pragmatism, humility, blazing curiosity and the willingness to communicate to the patient whatever inner and outer change is necessary to be whole.