The Garden Wizard Cascade Self-Watering Raised Bed adds a new twist to raised bed garden design. Created with self-watering walls the Cascade adds a second tier to the planting area. Not only does this add visual interest to your landscape but it is useful for keeping plants separated, provides a deeper root area, and plants are closer requiring less reaching or bending. The walls will hold over 30 gallons of water. When you fill one wall with water, it transfers to each of the other walls while simultaneously watering the garden through the unique soaker hose system connected to each wall. Using a slow-drip, wicking action the hoses only deliver water to the soil as needed. So, you can be assured that plants will stay watered, but not over-watered. Easy to assemble in no more than 10 minutes from start to finish. Simply layout your setup location, connect the wall sections with the pins, and attach the included soaker hoses (optional). Made using FDA approved materials.