The Oya is a traditional, natural way to save water, grow easy and get better plants. Oyas are clay vessels that when planted in the ground naturally, perfectly water your garden - dramatically reducing water waste and watering effort. Fill the Oya every few days and the rest is taken care of. Plant roots instinctively grow toward the porous clay of the Oya and take exactly the water they need, no more and no more less. Save water. Grow easy.