In the past I have written about two kinds of peonies, the indomitable herbaceous peony that needs to be cut back in the fall, and the ancient tree peony that originated in China and blooms on woody stems that are more shrubby than tree-like. Both are extremely hardy with beautiful spring flowers in a variety of forms including the classic bomb with its very heavy blossom. Many see that the drawback of the herbaceous peonies, especially those with…