A modular planting system which includes: an outer planter box having at least one side and being completely open at a top and open at a bottom of the outer planter box； an inner planter box having at least one side and a porous bottom and being completely open at a top of the inner planter box, the inner planter box being sized to fit within the outer planter box； wherein the outer planter box and inner planter box comprise a first module of the modular planting system.
