A system for growing a plant includes an inwardly reflective enclosure and preferably a top. A plurality of LEDs, preferably controlled by a control unit, selectively emit light onto predetermined portions of the plant. The control unit controls the growing conditions inside the enclosure with the use of air vents and air flow, an optional heater, and feedback from light intensity and color sensors. The inwardly reflective enclosure can be formed of inner and outer walls with a reflective film sandwiched in between. If desired, a recycling collar can be used with any of the LEDs to increase the intensity of the light ray. The top cover can be formed of a plurality of panels rotatable about their longitudinal axis between a closed position and open position. In another embodiment, pair of inwardly reflective enclosures share a common, reflective wall with holes. The two enclosures are operated through light and dark cycles so as to exchange oxygen and carbon dioxide alternately with one another
