The Hurdles For A Cannabis Startup with Ryan Douglas of Ryan Douglas Cultivation. As Master Grower from 2013 to 2016, he directed cultivation for Tweed Inc., Canada’s largest licensed producer of medical cannabis and the flagship subsidiary of Canopy Growth Corporation. As one of the company’s first employees, he helped drive the organization’s early success by designing the production facility, selecting the genetics, and hiring and training staff to produce 70,000 plants and process 6 tons of dry cannabis annually. His work at Tweed has been featured in Vice, New York Times, Bloomberg News, and on National Public Radio.