I take care of a property that has a Retention Pond, more less a Water Overflow area as it rarely has standing water in it, mostly dry. Any suggestions on what plants might thrive along the bottom or along the bottom edges to try and hide this unsightly area? Its only approx. 15' x 15' in size and its landscaped up to the upper edges, but the bottom and bottom sides simply get full of weeds and looks horrible if I don't pull weeds all the time, can't I plant something in there to conceal this? Any suggestions would be great!