Cornus officinalis blooms very early and blooms with plum blossoms in early March. In early spring, the branches are dotted with small yellow flowers, which gather together like umbrellas. 1 1 Month The fruit is ripe and the size and shape are like medlar. The fruit of Cornus officinalis is bright red, bright and shiny on the branches, which is very bright. Although it is also called dogwood, it is not called dogwood in ancient poetry.
Country of origin
China Shanxi, Shaanxi, Gansu, Shandong, Jiangsu, Zhejiang, Anhui, Jiangxi, Henan, Hunan and other provinces. Korea and Japan are also distributed. Born on the edge of forest or in the forest at an altitude of 400- 1500m and 2 100m. Introduction and cultivation in Sichuan, China.
Cornus officinalis is a positive tree species in warm temperate zone, and its optimum growth temperature is 20-30℃. If it exceeds 35℃, it will grow poorly. Strong cold resistance, can withstand the short-term low temperature of-18℃ and grow well. Cornus officinalis is more tolerant to shade but likes plenty of sunshine, and usually grows well in the middle and lower part of hillside, shady slope, sunny slope, valley and river bank.
It is generally distributed in areas with an altitude of 400- 1800 meters, of which 600- 1300 meters is more suitable. Cornus officinalis should be planted on sandy loam with good drainage and rich organic matter. Clay should be mixed with proper amount of river sand to increase drainage and permeability.