Cultivate ’17, North America’s largest horticultural tradeshow is set to use the entirety of the newly expanded and renovated Greater Columbus Convention Center (GCCC). AmericanHort’s Cultivate’17, July 15-18 in Columbus, OH, is the horticulture industry’s renowned professional development event with the largest all-industry trade show. AmericanHort estimates about 10,000 attendees, more than 125 educational sessions and close to 700 exhibitors.