Synonymous with cottage-garden design, peonies are old-fashioned plants with big, impressive blooms and a wide range of color options. P. lactiflora has splashed of red on the stems and single cup-shaped white to pale-pink flowers up to 4 inches in diameter. 'Duchesse de Nemours' flowers for about 10 days in May and June, but after the creamy-white double flowers fall away, the dark-green foliage remains attractive through early fall.
Grows 30 to 36 inches tall and wide in USDA Hardiness Zones
3 to 8; full sun or part shade.