Self watering containers are an enclosed growing system that decreases moisture evaporation and offers a consistent water supply to your plants. It is made up of two chambers, the growing chamber and the water reservoir chamber. The growing chamber contains a wick that descends into the water reservoir that pulls water up into the growing chamber as needed for the plants.
Many versions of self watering containers, also known as self watering grow boxes, self watering pots, and self watering planters are sold online, but you can make them yourself for a fraction of the cost out of some easy to find items. Visit Grow a Good Life at the link below to see how you can make your own out of an 18 gallon tote: