An apparatus for growing plants comprising:
- a cylinder that is mounted on a fixed hollow perforated axle permitting the cylinder to rotate around said fixed axle;
- a mounting stand to support said axle at its ends to hold the cylinder in a substantially horizontal position;
- the axle being perforated along its length to allow the passage of liquids introduced to the hollow axle through an end of the axle to pass through the axle to an inner surface of the cylinder;
- the inner surface of the cylinder being permeable to the liquids and impermeable to a plant growth medium;
- an outer surface of the cylinder being perforated to allow the rooting of plants through the outer surface of the cylinder;
- the inner and outer surfaces of the cylinder being held separate from each other by end caps;
- an interior space between the inner and outer surfaces of the cylinder being substantially filled with a plant growth medium;
- the cylinder being communicably coupled with a drive source that causes the cylinder to rotate.