A system and method for optimal distribution of light on a plant ensures much of the plant receives uniform light during growth, including shadow regions of the plant. Multiple light sources position along the length of the plant. The lumen output of the light sources is incrementally varied. The position of the plant relative to the light sources horizontally and rotatably incrementally adjusts as the plant grows. A platform moves the plant horizontally relative to the plant. The platform rotates to orient the plant toward the light. Principles of inverse square law are used to adjust the distance and orientation of the plant relative to the light sources. Energy savings occur since lumen output is adjustable to match plant growth. Environmental sensors monitor environmental condition proximal to the plant, length of the plant, and distance between plant and light source to dictate operation of the light sources and platform.