It is a very intriguing plant. The blooms only come up if there has been enough water, so it varies from year to year how many of mine bloom. This year the only ones that bloomed were in a garden getting regular watering. After the bloom is done the variegated foilage comes out, stays for the winter then disappears again in late spring. I can tell you I was surprised when I saw one for the first time! Especially since I didn't plant it!!
The bloom lasts pretty well, and the whole plant seems to be rodent proof. At least in my yard!
A real attention grabber! 
