• Anatomy
  • Balance
  • Body Systems
  • Certificate
  • Empowerment
  • Health
  • Herbal Medicine
  • Herbal Preparations
  • Herbal Treatment
  • Herbalism
  • Herbs
  • Mind-Body
  • Nutrition
  • Physical Health
  • Prevention
  • Vitality
  • Well-being

Green Medicine: A 4-Month Training in Herbalism

Featured Presenter: Peeka Trenkle


A 4-Month Training

Monday, April 4, 2022 – August 1, 2022

16 Lectures on Mondays; 7:00 – 9:00 PM EST TIME

Saturday & Sunday programs vary by date and time — see a detailed schedule below

FREE INTRO ON Monday, March 14, 2022, 7:00 – 8:00 pm EST


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.

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.


A 4-Month Online Training

Monday, April 4, 2022 – August 1, 2022

16 Lectures on Mondays; 7:00 – 9:00 PM EST TIME

No class May 30, July 4, 2022

Saturday & Sunday programs vary by date and time — see a detailed schedule below



  • Peeka Trenkle, MDiv


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


  • Anyone 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 7:00 – 9:00 pm EST, combined with 3 full-day and 2 half-day sessions on weekends. All Monday evening classes are taught by Peeka Trenkle, MDv.

See CLASS SYLLABUS for a detailed description of all the classes.

A short version of the program schedule is listed below:

  • Monday, April 4 – A Brief History of Western Herbalism
  • Monday, April 11 – Preparations & Dosages
  • Monday, April 18 – The Digestive System and Liver
  • Monday, April 25 – The Respiratory System
  • Saturday, April 30 – Basic Chinese Diagnostic Techniques, Drew DiVittorio, 10:00 am – 5:30 pm EST
  • Monday, May 2 – The Nervous System and Brain
  • Monday, May 9 – The Endocrine System
  • Saturday, May 14 – Herbal Pharmacy PART 1: 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.
  • Monday, May 16 – The Circulatory System: Blood and Lymph
  • Monday, May 23 – The Skin
  • Monday, May 30 – SKIPS
  • Saturday, June 4 – Herbal Pharmacy PART 2: 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. 
  • Monday, June 6 – Women’s Reproductive System
  • Monday, Jun 13 – Men’s Reproductive System
  • Monday, Jun 20 – Seasonal Healing: Herbal Therapeutics and the Cycle of the Year
  • Monday, Jun 27 – Musculo-Skeletal System
  • Monday, July 4 – SKIPS
  • Saturday, July 9 – Herbal Treatment & Management of Chronic Illness: Eastern & Western Approaches, Drew DiVittorio, 10:00 am – 5:30 pm EST
  • Monday, July 11 – Urinary Tract and Kidneys
  • Monday, July 18 – Materia Medica/Herbal Medicine Chest
  • Sunday, July 24 – Programs with David Winston 
    • 10:00am – 12:30pm -Adaptogens: Herbs for Strength, Stamina & Stress Relief
    • 2:00pm – 4:00 pm EST Herbal Synergy, A Key to Effective Herbal Medicine
  • Monday, July 25 – Case Taking Skills I
  • Monday, August 1 – Case Taking Skills II

(All dates are Mondays except when noted otherwise.)


  • Click HERE to read Green Medicine: Nature’s Way an Interview with Peeka Trenkle.
  • Click HERE to read Meet the Teacher: Peeka Trenkle.
  • Click HERE to read Meet the Teacher: David Winston. David is a guest presenter for the Green Medicine Training.
  • Click HERE to read Herbal Medicine: Treating People, Not Diseases.


$1,675  – 22SGM1TA


$1,775 • Course –22SGM2TB

Non-refundable Initial Payment of $500 is due upon registration.  3 additional payments of $425 are due on May 2, June 2, June 27. Call for payment plan info: 212.219.2527.


  • 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.

Green Medicine: A 4-Month Training in Herbalism

  • 21 Session(s)
  • Apr 04 2022 7:00 PM ET


$1,675: Full Payment


$1,675: Full Payment

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, 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, 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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