They are native to the Southeast US, swamp plants! They can take a freeze, but not too hard or for long,... I move mine into the garage during hardest cold,...Winter I cut them back to nearly nothing,.. the rhizome is a lot like ginger, runs just below the surface, and breaks easy,.. propagation is a snap! You could grow these out your way, full Sun, decent RH%,.. I live in coastal central CA, just on the edge of what they will take for low RH% during Fall,.. they are after all, swampies!