Name: Susan Virginia (Zone 8a) God is the only thing that matters.
I read that they die back after they flower but they do like a lot of water. This website is suggesting that you plant them with Hostas so the hostas will cover them when the die-back occurs.
Consider the lilies of the field, how they grow; they toil not, neither do they spin: And yet I say unto you, That even Solomon in all his glory was not arrayed like one of these. Mat.6:28-29