Apparatus comprises at least one base member 110 having a periphery 112, at least one wall member 120 having at least one channel 122a, 122b, and at least one intermediate filter 170 operable to be supported by the at least one wall member. The one or more wall members are couplable to the periphery of the at least one base member for providing a hollow space 140, and the at least one channel is operable to receive at least one tubular member 160, 162 supported at a distance from the at least one base member. The at least one intermediate filter is arranged for dividing the hollow space into at least two segments, 172, 174. The wall member may comprise first and second 124a, 124b sheets which are couplable or overlapped, along at least their lateral edges for forming the at least one channel there between. Also disclosed is a methods of forming and using the apparatus and a kit for growing plants comprising the claimed apparatus.