A transformative gathering in the heart of Cincinnati, Ohio, to celebrate the rich history, spirituality, and eclectic roots of herbalism.

Join us at the International Herb Symposium.

For more than 25 years, the International Herb Symposium has gathered herbalists from across the globe to honor the healing power of plants.

In 2027, we turn toward hands-on medicine with practitioners of Ayurveda, TCM, curanderismo, Western clinical herbalism, African-diasporic traditions, European folk medicine, and indigenous plant knowledge from around the world — teaching herbalism as it’s done across traditions.

June 17–19, 2027 · Memorial Hall · Cincinnati, OH
Wrap up Sunday, June 20 · UpS Botanical Sanctuary · Rutland, OH

Founded more than 25 years ago by Rosemary Gladstar, this biennial event continues to be a place for herbalists from across the globe to exchange information about the healing power of plants. The Symposium holds a special place among herbal conferences, bringing together people from diverse backgrounds and ways of working with medicinals.


Why Attend?

The International Herb Symposium (IHS) is more than a conference—it’s a global gathering of herbalists, healers, and plant lovers united by a deep respect for traditional and modern herbal wisdom.

🌍 Global Herbal Traditions

Learn directly from Indigenous teachers and other esteemed educators from across the globe. They’ll share diverse perspectives you won’t find anywhere else.

🧠 Expand Your Knowledge

Choose from 50+ workshops organized into five tracks—Eclectic medicine, clinical herbalism, plant spirit work, folk medicine, and herbal business.

🤝 Connect with Community

Join a vibrant network of passionate plant people and form connections that go far beyond the weekend.

🌱 Support Plant Conservation

Your ticket helps fund United Plant Savers’ efforts to protect at-risk medicinals for future generations.

Experience the Magic

Beyond the workshops, explore an herbal marketplace, attend ceremonies and music performances, and experience the living culture of plant medicine.

Event Details

Location: Memorial Hall, Downtown Cincinnati

Memorial Hall offers ample parking and is close to hotels, Airbnbs, and dining options. Washington Park, directly in front of the venue, is a perfect spot for picnics and gatherings with fellow attendees. Coffee, tea, snacks, and a vendor marketplace will be available throughout the event.

All people are welcome at the International Herb Symposium.

People of all racial identities, national or ethnic origins, ancestries, ages, religions or religious creeds, abilities, sexual orientations, gender & non-gender conforming identities, skin colors, and body sizes are joyfully invited to this biennial gathering.

The International Herb Symposium and IHS Learning Center are both a benefit for United Plant Savers. When you register, you’ll be helping to protect native medicinal plants.