Rhododendrons: Frost damage to my azaleas???????

HI, I have a question.My azaleas bloomed and were looking pretty,the weather had been very warm.One night we got a frost 20 degrees,now they are black.Since the weather has gotten warm again underneath the black of some the have grown green and began new blooms.My question is am I supposed to cut off the black or leave it?

 

You can pull or clip it off if you like. Eventually dead flowers and leaves will fall off. Dead stems may persist for awhile, so that you may want to snip those out. The main reason would be to make them look better.

 

same here. black everything. we got hit really hard. it will be interesting to see what makes it. i think the crape myrtles were hit the worst.