Water Lily is amazing. It will make those great heads of perfect flowers and hold them for two maybe three weeks at a time. And then it may hold them for some time after they look their best. I've never actually deadheaded, but some might think it's necessary. This one's a little more than two feet high and a little lopsided, but i'm hoping in a year or two it will balance out. I got it from Palatine. Last year it sold out in the first week.
I got Las Vegas from Palatine. I love that photo, too. I'm not sure I love the plant as much. A bloom will look like that for 24674.8 seconds, tops. Before that it is an insignificant bud. After that it is a big blown faded flower. And mine makes about a dozen a year. So you practically have to stand in the garden waiting to get such a picture.
No disease problems noted with either.