Allow me introduce you to Paeonia mascula ssp. russoi, a lovely species peony that I got from Far Reaches Farm several spring ago.
The emerging foliage is a sight to behold; very dark burgundy that emerges strong and unfurls over the course of a week or two, weather depending.
The delicate blooms follow. It flowers generously even in my somewhat semi-shaded position.
In late summer, early fall it has an unusual and attractive seed pod that develops. I'm fairly certain I took a photo of that last fall but for the life of me, I can't locate it at the moment. It's winter hardy to zone 6 and the nursery's site says it will get about 24" tall and wide, though mine is a bit smaller than that at this point.
This is definitely a plant worth seeking out from your local specialty grower, or you can order it from Far Reaches if you can't get it locally. You won't regret adding it to your garden!