Add beautiful flowers to your home's exterior the easy way, with the WindowBox Belterra self-watering planters. This unique window box planter offers a bold slate color that works well with traditional as well as contemporary home décor themes. Aside from its obvious style, it's also convenient for those with limited space and limited gardening skills. Mount the planter to any railing or wall, thanks to specialized brackets which hold it firmly in place. What's makes these planters truly special, however is their sub-irrigation system. Under optimal conditions, your plants receive water and nourishment for up to 3 months, without you lifting a finger after the initial set-up, you can always irrigate a little more in arid locations. It's the perfect gardening tool, whether you're know for your prized roses, or you just wish you were. Available in two standard sizes.