Anyone familiar with this plant and how to divide or propagate it? I have a large plant it covers about 8' X 8' area and is beautiful. I would love to take some cutting or whatever I need to do to get some going at other ponds. I have it at one clients growing out of the edge of the waterfall. I have taken cuttings several times with no success. Last year I took a cutting and planted it in a bog situation and it is doing great. I just don't have many bogs and I would really like to duplicate the waterfall situation.