My friend Tammy solved this mystery. This is a single peony. (I had never heard of such!) After some searching, I found that this was a Paeonia 'Spiffy' Japanese Peony ZONE 2-8, HT 28", SUN A Japanese blossom type with fuchsia-red and soft pink-cream petaloids surrounded by matching fuchsia-red petals. This mid-season blooming peony is fragrant. Thank you Tammy!