Ontario Herbalists Association

Promoting safe & natural healing with plants since 1982

The OHA is gathered on the traditional territory of the Canadian First Nations peoples.

The OHA recognizes that for thousands of years, indigenous people have walked on the land we call Ontario; their relationship with the land is at the centre of their lives & spirituality. They walked gently on this land and offered assistance and shared knowledge to the first European travellers in what was at times a harsh climate.

We acknowledge and thank them for their stewardship of this land throughout the ages and seek a new relationship with them based on honour and respect.
We need to follow their example.

Welcome to the Ontario Herbalists Association


The Ontario Herbalists Association promotes safe and natural healing with plant medicines. We provide standards of education and practice for professional herbalists, and we encourage public understanding of herbs and herbalism.

Whether your interest in herbs is culinary, medicinal, practical, or horticultural, there are many opportunities to learn and enjoy!

OHA Event Calender

Seminars, events, and items of interest related to herbal medicine are posted here.

Find a herbalist in your area

Use our interactive map to find a professional registered herbalist near you!

Membership Benefits

If you are either a supporter, a student or a professional of herbal medicine, see what benefits becoming a member has!

General Inquiries

General Inquiries