The U-GRO is a sturdy pot grow bag with compressed coconut Mix3 with EXTRA ADDED endomycorrhiza FUNGI (Endomycorrhizaschimmel promotes the absorption of nutrition in plants) The culture bag is UV resistant and is perforated at the bottom, therefore, you no longer need a pot. -Low In EC -Easy growth -Water saving -air capacity -Ready for use -Eco friendly -Recycable U-GRO Rhiza endomycorrhiza fungi Endomycorrhiza fungi connect the soil with the plant. The endomycorrhiza fungi grow partly in and around the plant roots , thus ensuring a large contact surface with the plant , the surface of the absorbent root system gets hundreds of times greater and the Exploitation of nutrients such as phosphorus and trace elements is much more effective. Another portion extends from the root into the soil and forms a dense network of hyphae . These hyphae reach bodemporien where roots can not get . Endomycorrhiza fungi facilitate the transport and storage of nutrients in the plant. Endomycorrhiza fungi provide the plant a better protection against soil-borne diseases , and stimulate the plants immune system.