1. Sophora japonica trees usually bloom in spring, probably between April and May. If they are cultivated in warm areas in the south, the flowering period will be earlier, and they may bloom in March. Its flowering period is not long, generally only lasting between 10-20 days.

2. In addition, the flowering period also depends on the variety. Some varieties can only bloom from June to July. There are two types of flower colors: white and purple. The white Sophora japonica flowers are edible and have certain nutritional value, while the purple Sophora japonica flowers are not edible.