Locust trees in the north generally bloom in spring, approximately from April to May each year, and the flowering period is generally about 10-15 days. Robinia pseudoacacia and Sophora japonica bloom in spring, with a flowering period from April to May, while Sophora acacia blooms in summer, with a flowering period from June to August.
Sophora flower, also known as acacia flower, in a broad sense refers to the flowers and flower buds of leguminous plants, but the open flowers are generally called "sophora flower", also known as "sophora pistil", and the flower buds are It's called "Huaimi". It is often planted beside houses and roadsides. It is widely cultivated in various parts of China, mainly in the north, mostly on the Loess Plateau and the North China Plain. It usually blooms in April and May every year, and the flowering period is generally about 10-15 days.