Rosemary Gladstar’s The Science & Art of Herbalism Certification Course

Tangled Roots Herbal is proud to play host to local Certified Herbalist Sheilagh Cruickshank as she teaches Rosemary Gladstar’s 9 month Herbal Certification program! We started hosting the program in March of 2018 and its been wildly successful so far!

If you have a budding interest in herbs and want to develop the skill and expertise, or if you’ve been playing with herbs for years but need more formal instruction to further your studies, this course is for you.

The next run of the course starts Saturday March 21 and is enrolling now!


About the course, in Rosemary’s words,

“The Science & Art of Herbalism is not a clinical level program, nor is the focus only on medical herbalism. Rather, the course builds a firm foundation upon which to continue to build one’s herbal education. It guides the student into the many areas and aspects of herbs providing pathways to deepen one’s awareness. The students complete the course with a well-rounded and grounded herbal education. The course is geared towards the beginner/intermediate students of herbalism, though I’ve had many knowledgeable well-trained herbalists sign up. They use the course material as a review and/or to better organize their own source of knowing and information. The Science & Art of Herbalism provides a systematic, comprehensive way to organize ones studies and gives excellent resources and techniques for doing so.”

Certification Course Includes:

  • Beautiful binder and Rosemary's delightful lesson books throughout the course

  • Hands on, in person instruction and teachings

  • Q&A with fellow herbalists, and support from your certified instructor Sheilagh and connection to other aspiring herbalists for support while studying

  • Hundreds of Rosemary’s recipes and personal formulas

  • Hands on herbal product making in class

  • Special Store Offers/Discounts at Tangled Roots Herbal

  • Personal review of all homework

  • A comprehensive approach to effectively use herbs for self and family care

  • A beautiful signed certificate for those who successfully complete the course


Some of the Subjects Covered:

  • How and Where to get Quality Herbs

  • How to Formulate and Prepare: Teas, Tinctures/Extracts, Herbal Oils, Salves, Balms, Liniments, Capsules, Natural Skin Care Products, First Aid Kit and more

  • Basic Aromatherapy

  • Flower Essences

  • Basic Clinical Mock-Up Cases

  • Legal Herbalism


Learn about Herbal Therapeutics for:

  • Nervous System

  • Immune System

  • Respiratory System

  • Digestive System

  • Urinary System

  • The Liver

  • Children’s Health

  • Women’s & Men’s Health

  • Herbs for Pets

  • Allergies & Hayfever

  • Winter Health

  • and much more

About the Instructor:
Sheilagh Cruickshank is an urban herbalist, teacher and small-space gardener who has been working with and learning from the plants for nearly 20 years. During that time she studied with Rosemary Gladstar, completing the Science and Art of Herbalism Apprenticeship, Advanced Herbal Training and Ecstasy of Teaching programs. An herbal instructor throughout the North Shore of Massachusetts, Sheilagh has co-taught an apprenticeship program at The Green Witch School of Herbalism for over 10 years and offered workshops at The International Herb Symposium, The New England Women’s Herbal Conference and Herbstalk. She is currently a teacher for The Science and Art of Herbalism on-line course. As a free-lance writer, she has contributed pieces to The Herb Quarterly and various herbal - based blogs. Sheilagh is delighted to share the joy, empowerment and self-care that connecting with the plants can bring!


Course Dates and Times:

We will meet 1 weekend per month for 8 months beginning in March and running until November, excluding October.  Both Saturday and Sunday classes begin at 10am and conclude at 4pm.

March 21-22

April 18-19

May 16-17 (tentative)

June 13-14

July 18-19

August 15-16 (tentative)

September 19-20 (tentative)

October~ no class, study group

November 14-15


The entire program and all in class materials is $1495. Students are required to supply their own materials for homework projects. (We give student discounts to all supplies purchased in the shop!) Payment plans and gift options are available. Please contact the shop directly for more details. Payment is due in full by the start of class.