Youbin Zheng is a Professor at the Ontario Agricultural College at the University of Guelph, as well as the Past President of the Canadian Society for Horticultural Science. He joined the University of Guelph in 2000 and has more than 25 years of research experience in controlled-environment plant production. His research has resulted in more than 150 peer-reviewed scientific papers, more than 10 book chapters, and numerous extension articles and scientific reports. His recent research focus includes the indoor production of cannabis and other medicinal and nutraceutical plants; greenhouse ornamental and vegetable production; and nursery and landscape plant production and maintenance, especially in rootzone management and lighting. He has been actively involved in indoor cannabis production research since early 2010. His group has published North America’s first few peer-reviewed scientific papers on indoor cannabis production. He developed the world's first university-level cannabis production course in 2019 and has been teaching this course since then. As the sole editor, he recently published the Handbook of Cannabis Production in Controlled Environments. He has been frequently invited to speak about his research results, both nationally and internationally.