An irrigation control wiring system includes an irrigation control valve box embedded into an earthen surface and defines an interior cavity below the earthen surface. The system further includes a removable cover adapted for installation over a top opening of the valve box and a back plate attached to an interior surface of the removable cover. The back plate includes multiple wire connectors. A bundle of wires passes into the interior cavity through a first opening in the valve box with each wire having a proximal end connected to at least one of the connectors and a distal end connected to a microcontroller remotely disposed from the valve box. Finally, the system includes individual wires, each coupled to a different one of the connectors at a proximal end and at a distal end to a respective sprinkler remotely disposed from the valve box within a sprinkler zone.