Ontario Herbalists Association

Promoting safe & natural healing with plants since 1982

OHA Events

Calendar of Events

OHA Professional Member Events


Talks/Presentations, Herb Walks, Hands-on Workshops

Tree Spirit Medicine: Hawthorn with Monika Ghent

Medicine from Hawthorn (Crataegus spp.): Following the Flow of Your Heart "It is only with the heart that one can see rightly; what is essential is invisible to the eye." Antoine de Saint-Exupéry In this experiential workshop participants will receive the spirit...

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Beginner Course in Herbal Remedies with Diane Tait RH

        Beginner Course in Herbal Remedies    Make and Learn How to Use Your Own Herbal Medicine Chest                       In seven one-day classes, we will ID, harvest and process medicinal herbs from spring to fall, in the wild or my garden (above). Learn how to...

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Cannabis Medicine Making

Click here to go to the registration page. *Please note we will require your membership number. Workshop information on the event page: http://ontarioherbalists.ca/event/cannabis-medicine-making/

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An Intro to Cannabis and How to Grow your 4 Plants

Click here to go to the registration page. *Please note we will require your membership number. Workshop information on the event page: http://ontarioherbalists.ca/event/an-intro-to-cannabis-and-how-to-grow-your-4-plants/

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Herbs, Health & the Elements: A Winter/Spring Workshop Series

Join Herbalist Tamara Segal for a series of workshops that examine herbal medicine and nutrition through the lens of the four elements.  Each workshop will focus on one element, looking at how it manifests in the body and mind, as well as in all of nature, including...

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The Ginko Tree Herbal Course

The Ginkgo Tree Herbal Course emphasizes self-care, home health, and self-reliance. You will learn how herbalism can offer a low-cost alternative to your family’s health care. This self-empowering, joyful home study course offers a “hands on” approach and is...

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Back to Your Roots Herbal Retreat

We are glad to be sponsoring this grass roots Ontario herbal event. September 8th, 2018 9am to 9pm Keynote Speaker We are thrilled to announce that Herbalist and Ethnobotanist David Winston, will be joining us as our keynote speaker at Back To Your Roots 2018. David...

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Special: Gatherings


Back to Your Roots Herbal Retreat

We are glad to be sponsoring this grass roots Ontario herbal event. September 8th, 2018 9am to 9pm Keynote Speaker We are thrilled to announce that Herbalist and Ethnobotanist David Winston, will be joining us as our keynote speaker at Back To Your Roots 2018. David...

Heartwood Gathering 2018

We are glad to be sponsoring this amazing Ontario herbal event again this year. 2018 Keynote Speaker – Jan Kahehti:io Longboat We are honoured and so excited to announce the Keynote Speaker at the 2018 Heartwood Gathering will be Jan Kahehti:io Longboat! Jan...

Great Lakes Herb Faire 2018

The Ontario Herbalists Association is proud to be a sponsor of this awesome herbal event in Chelsea, Michigan. September 7-9, 2018 http://www.greatlakesherbfaire.org

Annual General Meeting 2018

  September 30th 9:30 am-4:30 pm The Assembly Hall in Etobicoke 1 Samuel Smith Drive (Kipling & Lakeshore)  We have some great speakers joining us this year at our AGM: Using Herbs & Nutrition to Aid Mental Health Katolen Yardley, MNIMH, RH (AHG) Nervous...

Great Lakes Herb Faire

Sept 8-10 2017 Cedar Lake Outdoor Center 2500 Pierce Rd, Chelsea, Michigan

ANNUAL OHA CORN ROAST AUGUST 18th 4 pm

You are invited to this potluck and celebration! Bring your family too! Saturday August 18th starting 4 pm-ish at the home of Rick DeSylva in Rockwood ON (near Guelph). SAVE THE DATE! Directions will be given when you RSVP

Forest Garden Convergence

June 4 - 5, 2016 The Carolinian Canada Forest Garden Guild and The Living Centre are pleased to announce the 3rd annual Forest Garden Convergence Join us for an exciting two days of learning, growing, deepening relationships and hands-on experiences in the art and...

Other Events of Interest


Events relating to plants, natural healthcare, and ecological protection. Please note these events are not endorsed by the Ontario Herbalists Association but are listed as they may appeal to members of the community.


Do you have an event you would like to share? Contact us to have your event listed here.

(Please note that all listings are subject to Board approval).