The select modern varieties of the Albiflora type stand well at the head of the perennial list in beauty of foliage and flower, hardiness and freedom from insects and fungous diseases. They also thrive on varied soils and in nearly every part of the Union.
For massing, some of the best Chinese varieties are very showy for a long period.
The tree peonia has a woody stem with delicately shaded flowers more or less doubled. Its final height is from three to four feet, and it is much used on shrubby borders. It is popular in the East and South, but does not prove hardy west of the lakes.