45 Cell GrowVert Vertical Garden Wall Panel -- combine units to make a mural. Approximately 2.5″ deep, perfect for succulents. Mounting bracket included. Panels are reusable and recyclable. Sustainably manages water: each panel retains water, while still providing good drainage and aeration for the growth medium. Water enters through the top watering chamber and spreads evenly across the back. Plants can be watered manually with the irrigator or through a built-in drip line system.