A system for growing plants, said system comprising: an elevated track circuit configured to be supported by an overhead structure, said track circuit comprising a track section including a cavity; a plurality of trolleys configured to move within said cavity; wherein said trolleys are configured to support plants coupled thereto with said trolleys selectively moving the plants along said track circuit, wherein said cavity having an inverted generally U-shaped cross sectional profile and including a pair of rolling surfaces with said pair of rolling surfaces separated by a gap, and wherein said trolleys each include a pair of wheels, with each said wheel of said trolley configured to roll along a respective one of said pair of rolling surfaces, said trolleys further including a shaft extending downwardly form said wheels and wherein said shaft of said trolleys extends through said gap with each said shaft configured to support a plant, wherein said system also comprises a drive system configured to move said trolleys along said track circuit; wherein said track circuit comprises two straight track sections and two arcuate track sections, and wherein each said straight track section includes a said cavity; and wherein said system comprises an idle end with said idle end including one of said arcuate track sections with said arcuate track section of said idle end including a groove, and wherein one said wheel of each said trolley is adapted to roll within said groove, and wherein said groove is aligned with said cavities of said straight track sections to enable said trolleys to transition between said straight track sections and said idle end. an elevated track circuit configured to be supported by an overhead structure, said track circuit comprising a track section including a cavity; a plurality of trolleys configured to move within said cavity; wherein said trolleys are configured to support plants coupled thereto with said trolleys selectively moving the plants along said track circuit, wherein said cavity having an inverted generally U-shaped cross sectional profile and including a pair of rolling surfaces with said pair of rolling surfaces separated by a gap, and wherein said trolleys each include a pair of wheels, with each said wheel of said trolley configured to roll along a respective one of said pair of rolling surfaces, said trolleys further including a shaft extending downwardly form said wheels and wherein said shaft of said trolleys extends through said gap with each said shaft configured to support a plant, wherein said system also comprises a drive system configured to move said trolleys along said track circuit; wherein said track circuit comprises two straight track sections and two arcuate track sections, and wherein each said straight track section includes a said cavity; and wherein said system comprises an idle end with said idle end including one of said arcuate track sections with said arcuate track section of said idle end including a groove, and wherein one said wheel of each said trolley is adapted to roll within said groove, and wherein said groove is aligned with said cavities of said straight track sections to enable said trolleys to transition between said straight track sections and said idle end.