By GreenTech North AmericaGreenTech North America is launching a dedicated two-day conference during the Expo on September 23 and 24 at the Pennsylvania Convention Center in Philadelphia. The conference focuses on innovations and developments shaping horticulture across North America. GreenTech North America: the conference programThe first specific topics of the GreenTech North America program have been revealed, featuring speakers and sessions set to drive the next phase of horticulture. Exhibition sold outWith strong interest from across the industry, the exhibition hall for GreenTech North America is already sold out, with only a limited number of entrance spots still available. GreenTech North America is well on track to welcome around 90 exhibitors and 1,000 visitors.