The white ones will typically grow deeper than the other two, but not always. Is one of them a yellow flower? Unless you know the variety name it will be a guess as to how fast and deep they spread. Based on the flower type, I suspect they are medium spread varieties. I do now they are not dwarf nor small varieties. You can easily reduce the size of the lily patch by using a glysophate pond herbicide on the deeper growing leaves. If your pond is bigger than 1/4ac I would put the root mass of each container in some area of shallow water 2-3ft deep wherever you want some habitat and cover. IMO these lilies will be a benefit in you pond.
Last edited by Bill Cody; 07/09/17 08:05 PM.
