Hydroponic grower BrightFarms has opened a new greenhouse in Yorkville, about 50 miles outside Chicago, as part of a nationwide expansion it says will eventually increase its growing capacity seven times over. The greenhouse is the second in Illinois for BrightFarms, which grows leafy greens sold in grocery stores including Mariano’s and Jewel-Osco. BrightFarms, which is headquartered outside New York City in Westchester County, opened a greenhouse in Rochelle, about 80 miles west of Chicago, in 2016.