My 5 ac is 2 years old and no native water plants yet .... With ducks and GBH I Woolf think that it would get in there on its own.... There are two lakes near (300) yards that is full of plants that is a problem for them... So I haven't put any in. I have about an acre of flooded timber and youpon so the little YOY have a little cover but not enough I don't think