'Marchioness' is an American hybrid tree peony developed by A. P. Saunders. It grows to a height of 4 feet with full sun to partial shade and moderate moisture conditions. The outer petals are a light peach and rosy pink blend. At the bases of the inner petals are blotches of blood red. In the center is a cluster of bright yellow stamens. Tree peonies are actually small stiff-branched shrubs. They should not be cut back or pruned except for dead twigs. It blooms in May and June. It is also resistant to deer.