The most suitable environment for peony growth.

It is suitable for the environment without intense heat in summer, severe cold in winter, less annual rainfall and relatively dry climate.

Peony (scientific name: peony? Andre. ) is a perennial deciduous shrub of Ranunculaceae and Paeonia. The stem is 2 meters high; The branches are short and thick. The leaves are usually bipinnately compound, and occasionally the leaves near the top of the branches are 3 leaflets.

The terminal leaflet is broadly ovoid, with green surface, hairless, light green back and sometimes white powder; the lateral leaflet is narrowly ovoid or oblong-ovoid, the petiole is 5- 1 1 cm, and the leaf axis is hairless.

Flowers solitary, bracts 5, oblong; Sepals 5, green, broadly ovate, petals 5 or double, rose, purple, pink to white, usually changing greatly, obovate, with irregular waves at the top; Anthers oblong, 4 mm long.

Disk leathery, cup-shaped, purplish red; Carpels 5, rarer, densely pilose. Kelp is rectangular with dense yellow-brown bristles. Flowering in May; The fruiting period is June.

The concave petiole of peony is mostly in different colors such as deep purple, purplish red, taupe, yellowish green, etc. The petiole is also divided into thickness, hardness and length, which can reach 40cm for the elderly,10 cm; Abbreviation The length of petiole, especially the angle between petiole and branch, varies greatly with different varieties and has a great influence on the ornamental value of flowers.

The angle between the petiole and the branches is large, the leaves are flat or drooping, and the leaves are sparse, such as "Mokui". Flowers are planted on the leaves to form a beautiful Ye Zhan, and the ornamental values complement each other.

On the contrary, the petiole is short and the included angle between the petiole and the branch is small. Because of the close branches and leaves, flowers are often hidden in leaves, resulting in the phenomenon of "hiding flowers in leaves", and the ornamental value is greatly reduced.