I agree with the Cannas. If you can find a source, Louisiana irises (beardless iris) would be another good choice. I think a lot of Hemerocallis (Daylilies) would love it. I grow some of those in containers that sit in 2-5" of water the year round though my area of Texas is generally hot and dry and colder in winter - very different from Montgomery county. I wonder how a fig tree or two would do? My uncle had a whole row of those planted along his back fence. They did great and were loaded with figs every year. That was in Brazoria county.
@Paulaadams
