Q.Can I Cut Back Pink Muhly Grass In June In Florida?
Pink muhly has not been cut back in several years. Lots of dried material under the plant. Drooping over instead of upright.

Certified GKH Gardening Expert
Pink muhly thrives on neglect and only needs occasional trimming to keep plants upright. It's best to do any cleanup in spring before new growth starts, but you could do some light pruning now and save the severe cutting till late next winter.
You could probably pull out the dead material around it.
https://www.gardeningknowhow.com/ornamental/foliage/muhly-grass/growing-muhly-grass.htm