A horizontal container gardening system for the regulated and automatic watering of plants grown within the system provides a large capacity water regulator having an internal water control device, supplying a controlled amount of water through connecting tubing to at least one growth container providing a constant water source to an elevated and covered plant growth medium suspended upon a platform above an elevated support structure, with at least one column of the plant growth medium extending into a bottom reservoir portion of the container, lifting water into the plant growth medium through passive wicking providing water to the roots of the plants growing within the elevated plant growth medium. The growth container may be attached to one another in series by additional tubing.