Additionally, because hydroponic systems do not rely on soil, they are not subject to many of the pests and diseases that can plague traditional gardens. As a result, hydroponic crops are often healthier and more vigorous than their soil-grown counterparts. Finally, hydroponics is a very water-efficient method of growing plants. In most cases, hydroponic systems use only a fraction of the water that would be required for soil-based gardening. This makes hydroponics an attractive option for growers who are looking for ways to reduce their water usage.