I agree, I'd put it in morning sun with afternoon shade in really good soil (and say a little pray for it.)
If you bought it at Lowe's, Home Depot, or another store that has a one-year perennial plant guarantee, then be sure to save your receipt, tags, and maybe the pot, too. If stores insist on selling plants unsuitable to the local climate, then they should be made to honor that guarantee.
The color is divine!
