Bark splitting on flowering cherry tree.

Anna
by Anna
we planted 2 flowering cherry trees 3 years ago. We lost one, and thought it had maybe gotten sick because its bark had a large split almost all the way up . The other one is doing amazing this year, but we just noticed its bark has a lot of little splits all the way up it. Do we worry, or is there something we can do? I don't want to lose another tree. It is heartbreaking!
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