The use of buried earthen jars (ollas) for watering plants is an ancient native Amercian technique with a long history of use in the Southwest. Many years ago Spanish settlers brought with them this ancient art and now with our future tied to the availability of water, we recognize the immediate need. With strict regulations on water usage these olla jars will slow the depletion of our limited water sources by placing the water where the plants need it the most - at the roots. By directly irrigating the roots with these ollas you will virtually eliminate water loss through evaporation. Since roots grow in search of water sources, they usually form a dense, fibrous mat around the olla for a very efficient water delivery system. Ollas virtually eliminate the water run off. These porous, hand-made unglazed olla pots are buried neck deep in the soil near the plants. Simply fill with water and it gently seeps into the soil to be absorbed by the roots of surrounding plants. Each olla pot will last for years.