The plant's common name is Chinese wild ginger, and I bought it not for the flowers, but for its splendid dark green, mottled with silver, foliage. Only getting about 6" high, A. splendens acts as a groundcover in shady areas, and in my climate it remains evergreen. It is hardy in zones (5)6 to 9, spreads quickly and is very easy to grow, but during times of drought you will want to throw a little extra water on it.
(BTW, it is not too late to enter this year's Winter Walk-Off. I am taking entries until midnight March 19th.)