Stacked growing containers. The growing containers are stacked so that they are offset to each other in order to expose their corners to optimum light. Each growing container has a locking mechanism to ensure that the growing containers are locked into their correct offset position. Also each growing container has a drainage hole. A drainage container is positioned below the stack of growing containers and receives the excess water from the stack. Piping may be used to remove and redirect the excess water from the drainage container if required. In a preferred embodiment the growing containers are offset by 45 degrees.