Abstract: A plant growing apparatus is described. In some examples, the plant growing apparatus includes a carousel that is powered such that controlled movement of tubs/containers/vessels with plants or plant matter on the carousel about an axis allows for controlled and measured exposure of the plants/plant matter to predetermined frequencies of light from a light source. The light sources are positioned such that, as the plants/plant matter pass by the light sources in a controlled and timed rotation, a predictable amount of light in predetermined frequencies that is necessary to promote healthy plant growth is provided to the plant/plant matter. The described plant growing apparatus including the carousel provides a uniform distribution of light vis-à-vis traditional plant growing methods and therefore achieves higher yields from the plant/plant matter.