A green wall and rainwater drainage module (10), which module comprises a water tank (12) for receiving rain water, which water tank comprises an overflow arrangement for discharging rain water from the water tank. Furthermore, the module comprises a plant holding compartment (14) located adjacent the water tank and having a closed off bottom and an open top, which plant holding compartment defines a space for receiving soil including one or more plants, which closed off bottom defines a drainage opening (30) for discharging rain water from the closed off bottom, and a piece of water absorbing fabric (40) extending between the water tank and the plant holding compartment for transporting rain water from the water tank to the plant holding compartment.
