Clay is a special type of sedimentary rock that dissolves in water and enables it to be absorbed thanks to a layered structure. Its use started from very ancient times as when clay is wet is very flexible and easily workable. When it is put in hot temperatures it becomes solid and it is called terracotta. Terracotta is perfect for the well-being of the plant as the pot is porous and slightly permeable and allows the exchange of oxygen, essential for plant’s respiration and growth.
It is a natural water storage as it can store excess liquid and can release it to the plant when needed. It offers frost resistance above -15°C, protecting the roots during colder climates.