Colorado has a diverse agricultural industry including commodity crops like wheat, corn, and potatoes as well as orchard crops, ranching, and horticulture. The horticulture industry is vertically integrated with major retailers and includes both wholesale and single site producers. Colorado also has a growing marijuana industry estimated to be worth $121.4 million annually and employ between 7,500 to 10,000 workers. The number of farms in Colorado has fluctuated over time from a high of 62,000 in 1930 to a low of 26,500 in 1990, rebounding to over 36,000 farms in 2011.