Floating Islands…. A concept that is becoming more popular. An island is a process of literally floating aquatic plants and even some land plants. They are held in place usually by a foam form that allows the roots of the plants to dangle in the pond’s water.
The plants roots get all their energy from the water which results in helping to filter the water. By taking up these nutrients, the plants usually grow larger and healthier. The healthier the roots, the more nutrients they will absorb. So it’s a win-win situation.
The plants that you can use are almost endless. According to studies done by the University of Maryland, in particular, found that Iris and Water Celery rated very high on the absorption rates of nutrients. They also found that floating plants absorb 200-300 % more nutrients than the same plants planted in soil in pots