A hydroponic grow assembly including an assembly base and at least one plant structure removably connectable to the assembly base to form a plant wall for growing plants. The plant structure includes a plurality of plant wells opened to a root chamber and the base includes a bottom structure enclosed by a perimeter wall to form an inner cavity of a reservoir tank to supply water to the root chamber of the plant structure. The bottom structure includes a support feature within the inner cavity of the reservoir tank to support the at least one plant structure in an upright position to form the plant wall of the assembly.