I take my an put them in the greenhouse for the winter.
I found this info on it, the bloom looks a little different. Hope I'm calling it the correct thing. I'm pretty sure I am. Last year the blooms weren't near this big.
Tropical Bog/Shallow : Spider Lily (green)
Green leaves wih large white flowers in spring and summer. Can be grown in as little as 2" of water. Grows to 2' Zone 8+. Great accent for pond border or bog.
Kim