Hydroponic growing is becoming increasingly popular especially with the many states that are now legalizing marijuana, allowing more people to enjoy growing quality cannabis indoors. Many plants and vegetables thrive with a hydroponic growing system and you can also enjoy growing beautiful plants, flowers, and vegetables. Hydroponic growing is nothing new, however, and has been practiced since early civilizations. There are ancient Egyptian records of growing plants in water, mentions of the Aztecās floating gardens and the hanging gardens of Babylon which all describe hydroponic growing.