GrowGeneration (OTC: GRWG) is a major supplier of retail and industrial hydroponic and organic gardening equipment. It operates in some of the fastest growing cannabis markets in the U.S. For example, it already owns and operates 8 stores in Colorado. GrowGen announced it is adding a 12the store, and its second in Denver – a 13,000 square foot facility that will also serve as the company’s new corporate headquarters. The location is killer – more than 100 commercial growers operate in the same zip code. Keep your eye on GrowGen – this is a company I will be watching closely.