Q.My Rise Of Sharon’s Bark At The Base Of The Tree Is Coming Off. Bark Looks Soft. Does Anyone Know What This Is?
Anyone know what this is or what’s causing this? Should I be concerned?

Certified GKH Gardening Expert
Unfortunately, your photo did not come through. Unless you see other signs of the pest, like insect bore holes or shavings from damage, it can be very hard to pin down damage.
Bark coming off around the base is only a problem if it is excessive, and makes a complete ring around the shrub.
Other things that can cause this issue can be fungal or bacterial infections, and sometimes simply overwatering too often.
Soft rot can be common, and this article will address the issue:
https://www.gardeningknowhow.com/plant-problems/disease/bacterial-soft-rot.htm
This article will help you with Rose of Sharon care: https://www.gardeningknowhow.com/ornamental/shrubs/rose-of-sharon/rose-of-sharon-bush.htm