Peony or tulip?

Photo by Barry Wallace 

This flower was a pleasant surprise when it bloomed.   It is a tulip that looks like a peony.   It is the same size as a peony flower: just over 6' wide.   I do not know what its name is and we had no idea it would look so grand when it bloomed.   There are six of them and they have made quite a pleasant show.

Please comment if you wish.

Barry Wallace