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Air size in Smart Pots
As roots grow in containers they eventually reach the walls of the container. With rigid walled pots, as the roots reach the walls of the pot, they begin to circle and continue to circulate in search of a more favorable environment. These root systems have very little branching, they often become entangled in themselves and, depending on the type of plant, have produced a taproot. These characteristics can hinder the plant's rate of growth and, in some cases, its chances of survival when transplanted.
Smart Pots are manufactured in a single, non-woven, polypropylene pot. The roots grow sideways, they develop their rootlets. They do not turn in circles in search of oxygen. The fabric lets the air pass through. The root mass occupies all the space available in the pot by producing rootlets instead of turning in search of oxygen pockets.
Smart pots allow plants to absorb water and nutrients from the soil or substrate.