Abstract: An automated recirculating plant growing mechanism, in one embodiment it is disclosed as having: a hermetically sealed frame; at least one conveying tray operable to constrain, maintain the temperature of, and vary the offset distance between rooting medias; a drive mechanism operable to recirculate at least one conveying tray or at least one light bar cleaning assembly around a prescribed conveying path; at least one air lock mechanism operable to seal and unseal the recirculating plant growing mechanism, and operable to remove from and install onto the conveying drive mechanism a conveying tray; at least one light emitting bar operable to emit light and be positioned around a crops canopy; and at least one watering station operable to sense root zone conditions and inject nutrients into rooting media.