Peonies: squashed tree peony, 1 by Pistil

Pistil wrote:
I planted a Tree Peony 'Hesperus" fall 2008. The first two winters were severe and it died to the ground, but it recovered, and this spring had lots of buds. the leaves are pretty sparse low down, but it filled out into a nice mound about 5x5 feet. I have never done any pruning except removing winter damage. Last week we had a windstorm, and the branches are all splayed out now. Should I cut them off? stake them upright? leave them alone?
Thanks in advance.