• Anatomy
  • Ancient Wisdom
  • Balance
  • Balms
  • Body Systems
  • Certificate
  • Empowerment
  • Green Wisdom
  • Health
  • Herbal Medicine
  • Herbal Treatment
  • Herbalism
  • Herbs
  • Mind-Body
  • Nutrition
  • Physical Health
  • Prevention
  • Syrup
  • Tea
  • Tinctures
  • Vitality
  • Well-being
  • World Traditions

Green Medicine: A 4-Month Training in Herbalism


Herbal medicine has been in use for thousands of years, each culture having its own unique system based on the herbs of its bioregion. This course is taught with an ecological and bioregional perspective, focusing primarily on the herbs that grow in our region here in the Northeast. This is a comprehensive four-month certificate training that explores the traditional, practical and environmentally sound ways of using herbs to keep well and treat common illnesses. This course gives a firm and solid foundation in the understanding of herbal medicine.

Free Introductory class on September 28, 7:45 pm EST


Topic highlights include:

  • The basic anatomy and physiology of each body system and how to promote healing and treat most acute illnesses
  • The history of herbal medicine and how we got to where we are now
  • How to prevent illness, promote vitality and maintain balance in the body through the use of herbs
  • Practical lessons on how to make your own herbal products at home
  • The legal considerations of being an herbalist
  • Guest teachers will share principles of Chinese herbal medicine and herbal synergy

Please note: you will receive a certificate of completion upon finishing the course, as well as a copy of the recorded virtual programs with access for three months so that you can review what was covered during the zoom classes. By registering you consent to be recorded as a participant. The recorded program may not be distributed or shared with anyone who has not registered for this training.


  • Everyone interested in herbalism – all levels of experience welcome
  • People who want to learn ways for prevention of illness and treatment of acute conditions
  • People who are interested in developing a bioregional and ecological understanding of health and healing
  • Green Medicine lays a solid foundation for further herbal study


There will be 16 two-hour lectures offered on Monday evenings, combined with 3 full day and 2 half-day sessions on weekends. For a complete list of classes, dates, and times, please see below:

All Monday evening classes are taught by Peeka Trenkle, MDiv.


  • October 19 – A Brief History of Western Herbalism
  • October 26 – Preparations & Dosages
  • November 2 – SKIPS
  • November 9 – The Digestive System and Liver
  • Saturday, Nov. 14 (Part 1) – Herbal Pharmacy: Making Herbal Products,
    Peeka Trenkle – 10:00 am – 1:00 pm EST
    In this first 3-hour segment we will cover the basics of how to make teas, tea blends, extracts, brandy infusions, herbal syrups and more using both fresh and dried herbs.
  • November 16 – The Respiratory System
  • November 23 – The Nervous System and Brain
  • November 30 – The Endocrine System
  • December 7 – The Circulatory System: Blood and Lymph
  • Saturday, Dec. 12 (Part 2) – Herbal Pharmacy: Making Herbal Products,
    Peeka Trenkle – 10:00 am – 1:00 pm EST
    In this 3-hour class we will continue with instructions and demonstrations of how to make an herbal salve, pickled herbs, energy bars, cordials and more.
  • December 14 – The Skin
  • December 21 – Women’s Reproductive System
  • December 28 – SKIPS


  • January 4 – SKIPS
  • Saturday, January 9 – Basic Chinese Diagnostic Techniques, Drew DiVittorio, 10:00 am – 5:30 pm EST
  • January 11 – Men’s Reproductive System
  • January 18 – SKIPS
  • January 25 – Seasonal Healing: Herbal Therapeutics and the Cycle of the Year, Peeka Trenkle
  • Saturday, January 30 – Herbal Treatment & Management of Chronic Illness: Eastern & Western Approaches, Drew DiVittorio, 10:00 am – 5:30 pm EST
  • February 1 – Musculo-Skeletal System
  • February 8 – Urinary Tract and Kidneys
  • February 15 – Materia Medica/Herbal Medicine Chest
  • Sunday, February 21 – Programs with David Winston
    10:00am – 12:30pm – Differential Treatment of Depression and Anxiety
    2:00pm – 4:00 pm EST Herbal Synergy, A Key to Effective Herbal Medicine
  • February 22 – Case Taking Skills I
  • March 1 – Case Taking Skills II

(All dates are Mondays except when noted otherwise.)

Featured Presenter

  • Peeka Trenkle, MDiv

Guest Instructors

  • Drew DiVittorio, Dipl 
  • David Winston, RH (AHG)


  • PreRequisites: None
  • Supplies list for the class: A reading list will be emailed to participants at the start of the course.
  • Zoom Software Requirements: This is an online course which requires Zoom webinar software. Zoom is easy to use. Click HERE to make sure your computer is set-up correctly.

A 4-Month Training
16 Lectures on Mondays; October 19, 2020– March 1, 2021, 7:45 – 9:45 pm EST
(No class on Nov. 2, Dec. 28, Jan. 4, & Jan. 18)
Saturday & Sunday programs vary by date and time – see detailed schedule
Full Payment: $1,675 – 20FGW15TA
*Payment Plan: $1,775 – 20FGW15TB

*Deposit of $500 due upon registration. 3 additional payments of $425 are due on 11/23/20, 12/21/20, 1/19/21. Call for payment plan info: 212.219.2527 x2.

Green Medicine: A 4-Month Training in Herbalism

  • 16 Session(s)
  • Oct 19 2020 07:45 PM EST
  • Classes fill up fast and are offered on a first come, first serve basis. Reserve your spot today.


$1,675: Full Payment


$1,675: Full Payment

Peeka Trenkle

Peeka Trenkle holds a Master of Divinity from Union Theological Seminary in NYC. With 40 years of experience as an intuitive healer, herbalist and homeopathic consultant, her deep interest lies in the integration of spiritual and physical healing, and how our relationship with the natural world affects our well-being.

Drew DiVittorio

Drew DiVittorio, Dipl, is a nutritional consultant who maintains a private practice in Chinese Medicine and the Taoist Healing. He is currently the founder and primary instructor at the New York Institute of Herbal Medicine & Nutrition, a one-year professional training program in classical Chinese herbology and nutrition.

David Winston

David Winston, RH (AHG), an herbalist and ethnobotanist with 40 years’ training in Cherokee, Chinese and Western herbal traditions, is the founder/director of the Herbal Therapeutics Research Library and dean of David Winston’s Center for Herbal Studies


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