Aquatic plants enhance the beauty of your pond, but they also play an important role in maintaining the balance of the pond and in keeping it clear. Water plants absorb nutrients and reduce light levels in the water, which could otherwise promote the growth of algae, which causes green pond water. Marginal and deep water Plants will also provide shelter for fish and natural material on which they might spawn.
Bog plants or marsh plants for the pond are ideal for planting areas where the soil remains wet but not submerged for example in the shallow areas of a wildlife pond. It is worth remembering most marginal plants will happily grow in these conditions,but bog plants will not do well on marginal shelves. These plants will add more colour, extend the flowering season around the pond and look great next to the traditional marginal plants.