Specific operation, (1) horizontal branches and branches close to horizontal branches are generally not cut, so let them be pruned naturally. (2) The competitive branches that affect the growth of the main spike should be cut off in time. (3) Control the growth of other lateral branches that do not form competitive growth, and cut them off in time when their thickness reaches 1/2 of the trunk thickness. Prevent the trunk from being too sharp and increase the height of the trunk.
Sophora japonica is extremely cold-resistant, which is widely distributed in northern China, and the highest can reach about 25 m. Its trunk will be grayish brown, and its branches will flourish and need pruning every year. It blooms in June-July every year and bears fruit in August-10. Seeds in fruits can be sown and propagated.