Check out our 2026 line up of Hort symposiums, they truly are some of the best in the country: 

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Sustainable Urban Landscapes Symposium

Thursday, March 19th 2026

The Cincinnati Zoo & Botanical Garden’s Sustainable Urban Landscapes Symposium is a full day of talks focused on environmentally conscious gardens and landscapes for our cities and suburbs. Top local and national experts discuss ideas and methods that promise vibrant ecosystems that will benefit wildlife, human health and well-being, and communities. Municipal planners, architects, engineers, landscape architects, green industry professionals of all types, gardeners, and anyone else with an interest in improving urban environments will find this symposium valuable and rewarding.

Plant Trial Days

Thursday, August 27th 2026

The Cincinnati Zoo & Botanical Garden’s Plant Trials Day Symposium is a fun and upbeat day dedicated to the very best plants for gardens and landscapes. For fourteen years, we have brought to Cincinnati the very best plant experts from around the country. Our past speaker list reads like a who’s who of American horticulture, and we continue to build on it! An educational and inspirational day for green industry professionals and gardeners. A very popular event that sells out every year. Register early!

Native Plant Symposium

Saturday, November 21st 2026

The Cincinnati Zoo & Botanical Garden’s Native Plant Symposium is a very popular day of talks on all things related to native plants. The very best experts discuss strong ecosystems for native wildlife, our unique and beautiful nearby ecosystems and flora, and the very best native plants for gardens and landscapes. Very popular and always a sellout, this is a special opportunity for green industry professionals, gardeners, and anyone who loves our native wild spaces. Register early!