There are more cultivars which grow in a wide range of temperature zones in China. The Japanese tree peony originally came from China. Usually a Chinese tree peony bloom at its third or forth year. Some varieties take longer to bloom. Afterwards each year the flowers become better and bigger.
Chinese peony can live more than a hundred year.
Most of them have fragrance. Usually the light color ones, such as white, light pink, lavender and yellow, have a more delicate or sweet fragrance. The darker ones, such as the purple, maroon and some red, have a stronger fragrance. Thus far, there is no accurate account available from the Chinese growers. Up till now 12 wild species of tree peonies have been discovered in China.