The patented EarthBox was developed by commercial farmers and proven in the lab and on the farm. This maintenance-free, award-winning, high-tech growing system controls soil conditions, eliminates guesswork and more than doubles the yield of a conventional garden, requiring less fertilizer, less water and virtually no effort in the process. The EarthBox Garden Kit includes an EarthBox, an aeration screen, a fill tube, mulch covers, casters, fertilizer, and dolomite soil amendment. Gardeners just supply a peat- or coir-based growing medium, plants, and water!