My sister gave me a started plant and I am researching where to put it. It appears it may be hardy on this side of the hill, and I am considering putting it down by my stream-fed pond. I'm concerned about invasiveness if in fact it will over-winter here. Lots of reports from Texas re don't plant, but nothing from the PNW. Has anyone had luck with this as a perennial, or is it an annual - in which case it won't matter where I put it.
I have not been able to have them return every year. I pot them and have included them into my pond and enjoy them for the season. (zone 7a former home.) I am now a 8a and should give them another try. They are very pretty and frogs love to hang out on them.