Why Use Self-Watering Planters?

There is a wide range of self-watering planters available or you can make your own.  Basically a self-watering planter consists of two chambers.  The upper chamber is the potting chamber.  There is a series of slits in the bottom of the upper chamber allowing water to be drawn from the lower chamber (water reservoir) by the plant roots using capillary action.  There is some type of hole at the