Aside from the time-saving aspects of self-watering planters, there are many other benefits. Did you know that the nutrients slowly flush out of the soil as you water traditional containers? The TerraCast® Self-Watering System allows the plant roots to wick the moisture from the bottom, retaining nutrients in the soil longer. They need less frequent fertilizing or adding organic matter into your soil. Also, the Self-Watering System is a great way to conserve water in the container garden.