Lyssimachia and Lobelia

To all:

I was at a nursery last week that specializes in perennials and shade plants
which can be raised successfully in Minnesota.  During the course of my
tour, I saw several species of Lyssimachia and Lobelia. These were not the
species normally associated with descriptions in aquatic plant books.
 Has anyone experimented with them in the aquarium?

Karl Schoeler