Sophora japonica in October has no special significance, but is caused by abnormal climate. Sophora japonica and Sophora japonica are the most common trees. Sophora japonica blooms in spring (April-May) and smells good as soon as it opens. Sophora japonica blooms in summer (June-August). In addition, there are other Sophora japonica, such as Amorpha fruticosa, which blooms in early summer (May-June), and Sophora japonica can bloom many times a year. In Huanghuai, it blooms from early spring to early winter.