Abstract: A modular planting system comprising a plurality of container units to receive therein a growing medium and one or more plants or plant material, the container unit being configured such that adjacent abutting container units define at least one or more voids therebetween; a frame with a plurality of engagement projections which extend at least partially into the at least one or more voids defined between adjacent abutting container units to maintain said container units in the abutting arrangement and positioned above apertures defined in the support frame member; and a water impermeable base that supports the frame spaced apart by a predetermined distance from an upper surface of the water impermeable base.