Distributed task allocation in social networks

A first tapered container is arranged to hold a supply of water and supports a second tapered container which contains soil and one or more plants. A wick extends up through an aperture in a lower portion of the second container and is arranged to feed water from the water supply in the first container to a plant in soil in the second container. The assembly may also include a third container which seats in inverted relation on the second conveyor. The containers used are preferably transparent and in one arrangement the first and third containers are of like size but the second container is of a wider taper to provide the selected wedging engagement of the three containers. In another arrangement the second container has an enlarged upper portion forming a downwardly facing shoulder for seated engagement on the first container. Also, the second container may have a top flange for seated engagement on the first container and furthermore may include a recess to receive the bottom edge of the third container. A holder having an apertured supporting surface for the container assemblies can be used and has a canopy with a fluorescent light for lighted display as well as for artificial lighting for the flowers.