Building Raised Beds on Concrete: Skip My Epic Fails
Building raised beds on concrete requires a 3-4 inch pea gravel base topped with geotextile fabric to ensure proper drainage and prevent soil loss into the voids. This setup manages excess water evaporation since concrete blocks percolation. Use 18+ inches of 50% compost, 30% topsoil, 20% perlite soil for moisture retention amid heat radiation. Read on for full steps across surfaces.