An adjustable plant pot support for supporting a plant pot on an underlying surface. The support has a substantially rigid body having top and bottom surfaces and an outer perimeter surface. The top surface is adapted to support a portion of the plant pot and the bottom surface is adapted to be seated on the underlying surface. The body has male and female elements that are adapted to be interconnected with the corresponding male and female elements of an additional plant pot support. The supports are vertically stackable and have a retaining wall extending vertically from the top surface to provide a guide against which to place the bottom of the plant pot.