If you are SERIOUS about gardening and self sustainability a hydroponic tower like this can produce fast and expand harvest of many crops. It cuts the cost of buying soil as the crops grow in water instead of soil. Nutrients are added to promote a healthy growth process. The tower system helps the sunrays to interact with the crops or plants. This system also preserves space given the sleek design, and it conserves water via recycling. In the times we are in, there are many issues with the quality of soil due to many environmental factors, this system alleviates the concerns of soil contamination or degradation. These are available at Emiraldthumb.com.