A system for aeroponic plant growth comprises a pump connected to a suction manifold and a delivery manifold, a two-dimensional array of N growing units, and an electronic cyclic sequencer. The array comprises X rows and Y columns, having N/X growing units in each row and N/Y growing units in each column. Each column comprises a suction collector plumbing section, a delivery distributor plumbing section, a suction solenoid valve, and a delivery solenoid valve. The suction collector plumbing section, delivery distributor plumbing section, suction solenoid valve, and delivery solenoid valve are connected to each of the growing units in that column. The sequencer is operatively connected to each of the suction solenoid valves and delivery solenoid valves. Each of the N growing units comprises an enclosure containing a spray manifold and a lid assembly. The suction manifold and delivery manifold are connected to each of the columns of growing units.
