A self watering container is the answer to a common dilema that gardeners face: How to keep containers watered during the time they are not home.
A self watering container is a simple idea: A container holds a reservoir of water. By basic osmosis, as the soil dries out, it draws up more water. There is no worry of overwatering, and as long as the reservoir remains filled, the plant never stresses from lack of moisture.
An additional benefit of the self watering container, is the addition of fertilizer to the water itself. You can use a dilute solution added to the water, and the plant receives a tiny amount throughout the growing season. A liquid fertilizer such as fish emulsion or manure tea, work very well.
There are two drawbacks to growing in a self watering container. The first is mosquitoes breeding in the water reservoir. This can be remedied by a couple of drops of oil being added to the water when refilling.
The second problem that can occur, is the effect that the sun has on the plastic container itself. Most plastics become brittle when exposed to direct sunlight for long periods of time. If using a self watering container, remember that there is a lifespan of two to three years, before you may have to replace the container.
Self watering containers can be any size and shape. They are the perfect answer for the gardener who is short on time, but long on passion for gardening.