If you've had the kind of wet year many of us have had, molds and mold-based diseases are unusually common this year. The plant will probably come back just fine next year, but I would cut back the infected flowering stalks, and dispose of them. If the leaves look ok, let them be.

Next year....

Those flower petals look like mine do when they are done. That is about normal, I think.

This was taken just at the very beginning of flowering.
Now looks more black. As for a wet summer, I would say it hasn't been overly wet, although I hand water alot, that may be the problem.
Thanks for help.