Beginner Gardening: Baked bed..., 0 by JessJess

JessJess wrote:
My sister has put a heck of a lot of work into her front yard - it's beautifully landscaped and she's honestly spent more time on it than I thought she had the patience for.... So it's a shame that when she had a new roof put on the house (she's big into home improvement. Also it was leaking), the roofers draped a tarp over one of her beds and dropped all of their debris onto it.

Last month (or even two weeks ago) that would not have been a big deal, but it's warming up and the temperature was in the 90s and the bed, sitting under that tarp, was just roasted alive.

When she got back, she watered everything thoroughly, and I THINK things will bounce back with time, but... it's pretty darned ugly.

The pictures included here are her Mugo plant (poor little mugo. I planted that sucker three years ago, and I'm attached) and an ornamental grass (though I confess, I have no idea what it's called). Do you have any suggestions for how we can help these bounce back and look good this year?