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Hosts: Richard Mandelbaum and Claudia Keel

1 Session

Starts August 12th

7:00 – 9:00 PM


Join ArborVitae directors Richard Mandelbaum and Claudia Keel for our very first online open house! Richard and Claudia will provide a live introduction to the first foundational year, 2nd year, and 3rd year of the professional program.  If you are curious for more information about ArborVitae's program located in New York City but haven't been able to make one of our on-site open houses, this meeting is the perfect opportunity to have your questions answered. If you already have an herbal training background and wonder if  you qualify for the 2nd or 3rd year, or what the additional training offers, ask your questions here!

Applications are currently being accepted for the 2015-2016 year. Make your deposit to secure your place in the program.




Claudia Keel is a clinical herbalist and flower essence therapist with an additional specialty in food and nutrition therapy. She has had a private practice in Manhattan, NY since 1999. Claudia also teaches regularly about herbs, flower essences and traditional foods in practitioner study groups, workshops and conferences.

Since 1995, Claudia trained as an herbalist in apprenticeships and courses with master herbalists. In the years before her teacher, William LeSassier, passed, she worked closely with him, hosting a small apprenticeship group as well as a formal course. Claudia helped to found the William LeSassier Archives in 2006 and has served on the board of the Northeast Herbal Association. Her primary training in flower essence therapy has been with David Dalton of Delta Gardens, but she also has flower essence practitioner training with the Flower Essence Society, Alaskan Essences, Bach Essences and a number of other producers.

Since 2002, Claudia has served as the Weston A Price Foundation NYC Chapter Leader, providing community education and resources for nutrition and traditional foods. From 2002 to 2011 she co-founded, developed and managed a farm-to-consumer food club which evolved into Traditional Nutrition Guild a 501(c)3 in 2006 along with the Traditional Foods Club in 2010. Claudia is a devoted gardener and wildcrafter and active student of organic, biodynamic, permaculture, husbandry and composting practices. For 25 years, she has been active in the NYC community garden movement, as a gardener, muralist, workshop teacher and advocate.

Richard Mandelbaum RH is a clinical herbalist with a private practice in Brooklyn and in Sullivan County, NY.  Richard has been practicing as an herbalist since 1997, with a background in both Chinese and Western herbal traditions.  In addition to seeing clients he teaches classes in herbal medicine, medicine making, and botany.  He is currently on the faculty at David Winston’s Center for Herbal Studies in Washington, NJ.   Until 2009 Richard was the Director of the Clinical Herbalist Diploma Program at the Lehigh Valley Healing Arts Academy in Emmaus, Pennsylvania.   In addition to teaching on a diverse range of clinical subjects, he often leads workshops on field botany, wild edible plants and mushrooms. He has been a professional member of the American Herbalists Guild (AHG) since 2003, and joined the AHG Council (board of directors) in October 2012.

Richard has been passionate about plants for over twenty five years, with experience wild foraging and growing herbs in an organic, permaculture market garden.  He is a graduate of David Winston’s  Center for Herbal Studies in New Jersey as well as having studied at Rosemary Gladstar’s Sage Mountain Retreat Center in Vermont, and in New York City with herbalist William LeSassier.

Richard is also active in issues related to fair trade, sustainability, and food justice, and is a member of the Governing Board of the Brooklyn Food Coalition.  He migrates throughout the year with his wife Gabrielle and their daughter Rose between Brooklyn and their straw bale home in Forestburgh, NY.  You can learn more about Richard at, by reading his blog at, or contact him directly at

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Live Online Open House for Herbal Studies