Ollas deserve their quiet reputation. A buried unglazed clay pot can water a small root zone slowly, below the soil surface, with very little equipment. That is useful. It is also easy to exaggerate. The best way to use an olla is to treat it as a practical irrigation tool, not as a spell against drought. University of Arizona Cooperative…
clay
Olla irrigation looks almost too simple to explain. A clay pot is buried in the soil, filled with water, and covered. The garden seems to water itself. But the quietness is the point. The system works because porous clay, soil moisture, and plant roots create a local gradient that changes as the soil dries and wets. University of Arizona Cooperative…

