We searched high and low for a vertical wall planter that's as low-maintenance as it is bold. Group these self-watering plant pockets to create a beautiful, easy-care living wall. Each planter has two pockets with a combined soil capacity of 1-1/2 cups. Leave space between planters for bushier plants and herbs, or stack tightly together to create an uninterrupted surface. When stacked, any excess water will trickle to the planter below.