The Ludwigia Narrowleaf Bunched Aquatic Plant, also known as Ludwigia repens, is originally native to the Southeast United States. It is extremely easy to grow and maintain and features a very fast rate of growth. These oxygenating pond plants are one of the most important components to your pond, as they help clean water, remove algae, produce oxygen and promote clarity. For best results, use 1 bunch per square foot of pond surface. This plant provides a naturally beautiful background to ponds or aquariums.