Specially improved Vasso Smart Watering Pot is divided in two parts; bottom chamber is filled with water whereas the top chamber is filled with soil. Bottom chamber under the top soil chamber has a different water capacity according to the size of the pot. If you fill the bottom chamber with water, you won't need to water your plant for a long time according to the plant type and ambient temperature. Due to the moisture maintaining property of Vasso Pumice stone which stays just few centimeters under the soil, provides water to plants as their need.