Chungao and Tianhou are two varieties of blueberry, which usually bloom in spring. According to the different temperatures in different regions, the flowering period is different, and the flowering period is usually around 10-20 days.

Blueberry, a deciduous shrub of Vaccinium in Ericaceae, has green, angular or cylindrical branchlets, usually with rows of hairs; Leaf blade nearly leathery, ovate to elliptic, apex acute, base cherry to suborbicular.