Grow a lush, fertile island of aquatic plants, grass, flowers, and any other types of thirsty plants on the Islandscapes Floating Planter. After filling specific hollow sections with included mulch and your own soil, set plants directly into the polyurethane media and set it in the pond. The plants will access the mulch and soil for fertilizer, and their roots will grow directly through the media, hanging into the pond to get water. Islandscapes Floating Planters also provide shade for the pond, and additional protection and hiding places for your fish. 5 sizes are available, varying in length, width and depth (delineated below), and they are all relatively "kidney bean-shaped."