A fluffy ball of hot pink, delicate blush, or white cupped petals may be what you think of when you hear peony, but there are many forms. All peonies have a center of stamens and at least five or more ...
Week five bloomers are perhaps the biggest group of peonies. "White and blush double peonies are typically the last ones to bloom in weeks six and seven; Itoh peonies also tend to be later blooming.