I have seen this very striking lily at Calloway Gardens near Columbus, GA, a location which would be cooler than the Houston area. They were being grown in pots in maybe 3 ft. of water in a cove which is part of a 60 acre lake. I was told that they died back in winter and came back in spring. I saw no evidence of invasion and some of the pots were empty, indicating that some of the lilies had died out. As memory serves, the origin of these was Brazil.
Lou
