They're slow growers, too. A 10-year-old tree peony is still a seedling, according to experts, and plants can bloom for years. In China, there are said to be tree peonies more than 200 years old ...

If you are new to growing Chinese tree peony plants in the garden, you’ll enjoy their attractive foliage and dramatic blooms. Much like the herbaceous peony species, Paeonia lactiflora ...