On a gray Baltimore afternoon, when the harbor wind cuts through your coat and the trees along Charles Street are bare, its a little surreal to step into a hydroponic grow room and feel like youve walked straight into July. Fans hum softly, LEDs wash every

Walk past a nondescript rowhouse basement window or a converted warehouse in Baltimore and you might never guess that, behind the brick and glass, LED panels glow fuchsia over rows of basil, lettuce, and tomato vines humming along in recirculating nutrient