Harnessing aeroponic growing technology. Tower Garden offers a cleaner, simpler, more efficient way to grow fresh, healthy food for your family. An advanced form of hydroponics, aeroponics is the process of growing plants in an air or mist environment rather than soil. Aeroponic systems use water, liquid nutrients and a soilless growing medium to quickly and efficiently grow more colorful, tastier, better smelling and incredibly nutritious produce.