Abstract: A hydroponic plant growth module includes a front module side facing in a forward direction, a frame having an upper end vertically spaced apart from a lower end, and a plant growth subassembly positioned at the front module side. The plant growth subassembly includes a plurality of vertically extending columns secured to the module frame and distributed in a lateral direction. Each column has a front column side facing in the forward direction and a plurality of growth pod ports in the front column side and vertically distributed along the column. The plant growth subassembly further includes a grow light assembly positioned outwardly of the columns in the forward direction. The grow light assembly has at least one light source and a light vector that directs at least 75% of light emitted from the at least one light source outwardly away from the columns in the forward direction.