Ontario Herbalists Association

Promoting safe & natural healing with plants since 1982


Living Earth School of Herbalism 10971 Jane Street , Ontario, Maple, Ontario

The Tree Spirit Medicine workshops are a series of experiential workshops that provide an opportunity for you to learn about and receive the medicine that one of our local tree species chooses to offer you at this time. In each workshop you can receive the medicine of a different tree species. Medicine from Yellow Birch: […]


An Intro to Cannabis and How to Grow your 4 Plants

Tincture and Tonic Apothecary 2247 Dundas St. W., Toronto, ON

Click here to go to the registration page. Brought to you by the Ontario Herbalist Association and OrganiGrow Canada. This workshop will give you an introduction to the Cannabis plant and its many uses throughout history. We will look at the ways it has been used for medicine, what led to the many years of […]


Developing Herbal Protocols for Lyme Disease and Other Chronic Infections

Presented by Abrah Arneson Date: April 9 2019 Time: 7:00 - 8:30 Join us for an evening of learning and discussion around herbal treatments for Lyme Disease. The workshop will open with encouraging a holistic understanding of the relationship between the body/mind and the bacteria. A discussion of specific aspects of developing a protocol will including dosing herbs, where to begin […]

Practical Herbalism Garden Course 2019

Viriditas Herbal Products Ltd. The class meets every Thursdays 6:30 PM to 8:30 PM for 20 classes. Course Objectives To guide participants through one entire growing season, in order to learn about and experience the planting, tending, and harvesting of approximately 25 medicinal plants which grow readily in Ontario. Students will participate in a group […]

Making Herbal Tinctures – Maple, ON

Saturday, November 23, 2019 This workshop covers all aspects of the process of making herbal tinctures from both fresh and dried herbs, including: Understanding different extraction media (menstruum). Preparing different potencies. Jars and equipment. Using different kinds of presses. Differences between using fresh and dried herbs. Administration and dosages. Differences between tinctures and other herbal […]

OHA Plant Exchange, Book Swap and Bottle sale

Sunday, June 7, 2020 Location: 3 Mill View Court,  Caledon East, ON L7K 2N4 Given the current guidelines for social distancing and limiting groups to no more than 5 people, it is still possible for this event to go ahead, under the following conditions: location: 3 Millview Crt., Caledon, a one-acre property with lots of room to […]

Herb Talks – Monika Ghent


Monday, November 30, 2020, 7pm - 8pm on Zoom This Herb Talk will feature an interview with Registered Herbalist and Plant Spirit Medicine practitioner, Monika Ghent. This is a free event for members!

Clinical Herb Camp

The Ginkgo Tree Ontario

Join us at Dogwood & Brambles Farm for a special, intimate gathering of 50-60 herbalists.

2021 OHA Annual General Meeting


Join us for the OHA's Annual General Meeting! Presentations by Penelope Beaudrow, RH and Joe Pitawanakwat.