Poly greenhouse, as the very name implies, is greenhouse made of polyethylene. Inside the structure covered with polyethylene, desired temperature is maintained. Based on the size of the greenhouse, the polyethylene can be purchased. It is easier and economical to create a poly greenhouse, also called polyhouse. A durable house covered with polyethylene can be used for growing fruits, like papaya and strawberry, vegetables, like tomato, coriander, spinach and capsicum, and flowers, like orchid, rose and carnation. It is possible to create a naturally ventilated polyhouse in which the environment inside is not controlled, rather has good ventilation system. Polyhouse farming is done under controlled growing environment.