What is wrong with this peony? (Pic link attached)
Here's the history: I bought her as a small shrub, and did not plant her right away. It was a hot spell, so she wilted. When I finally planted her in the sunniest location in the yard (~6 hours of midday sun a day), her leaves began to turn brown. She has shown little revival or stamina through the summer. I pray she comes back full force next spring.
Is this a possibility?
What did I do wrong?