Mark, Mine lost all it's color a couple months back. It has been grown in full sun and is thriving! After losing color, I thought maybe it was mislabeled and not really a HCM.
In this picture it is next to a DC. on right for perspective. DC. is 1 month younger than HCM. They look the same except for size. Both plants were 8 inch TC's in 4 inch pots back in October 06.