Flowering marginal pond plants live around the shallow margins of ponds, usually up to about 12" / 30 cm deep. They come in all shapes and sizes, and add texture and colour to the pond. Not only are they benificial to the pond by reducing algae growth, they also make ponds look more natural. There are several types low growing marginal plants that creep along the the pond edge or in streams such as Brooklime or Water Forget-Me-Not. and there are also many taller plants that grow up to 3' / 90 cm tall such as Iris or Flowering Rush that make great background plants.