Paeonia suffruticosa 'Yagumo' Absolutely spectacular and long lived plant that should be used more. Enormous, semi-double purplish-red flowers, late May-June. Grows slowly into a 3 to 4' woody shrub with coarse, exfoliating bark and luxuriant foliage. Full sun to light shade in deep, fertile, well-drained soil. Protect from high winds. Do not cut back. Slow to flower when immature. Extremely hardy. Tree Peony - purple