Sledge described the operation generously: the rooms teeming to the scrolled plaster ceilings with bud-heavy green stalks, the floor cabled with sprinklers, the walls lined with foil reflectors to maximize the ripening effects of the solar-spectrum lamps, the stereo chattering NPR talk radio to cover the drone of the daytime light banks, and classical music to give the plants a cultural heritage through the cool damp night.