I don't know if this is normal or not, but my D.capensis that is flowering right now looks kind of dry.
It starts off looking like a "rose bud", but as it grows, it seems to turn to a dark purple (versus bright purple) and is all wrinkly. Reminds me of a freeze dried raisin. Are the flowers suppose to look this before it opens? So far, this has happened to only one but there are 4 more about to flower.