Horticultural tree

Claim 1

In a multiple level plant assembly having a base container which serves as a reservoir, a lid for the base container, a plurality of frustoconical modular tray elements for containing soil, and a plurality of support frame elements for stacking the tray elements in spaced relation in the vertical direction, and means to communicate soil within trays to liquid within the reservoir through capillarity, the improvement comprising: a reservoir lid having a frustoconical shape defining a lower opening matable with the top opening of said base container, and defining a top opening which accomodates one said frustoconical trays at a level intermediate the top and bottom thereof; a plurality of frame elements of a frustoconical shape, each frame element defining a first supporting adapted to engage the inside surface of a first tray and a second support ring adapted to engage the outside surface of a second tray, said plurality of support elements being nestable, and a volume defined by said frame elements when nested which is less than the volume defined by one of said tray elements; a conducting valve adapted to engage hanging from a first tray as communication mean between water and soil, which is also nestable through hole defined by nested trays; and, the reservoir defining a volume large enough to accomodate said trays when nested, whereby the support elements when nested can be stored within the reservoir of said base container.