Pruning of Sophora japonica includes summer pruning and winter pruning once a year. Summer pruning should be carried out in the vigorous growth period of Sophora japonica, and the drooping branches of that year should be shortened by 2/3 or 3/4, so that more branches can be sent out from the cutting mouth and the crown can be expanded. When cutting short, you must pay attention to the upper bud or side bud, because the branches germinated by the upper bud can expand and grow in a parabolic shape.

2. Pruning of Sophora japonica in winter:

In winter, the leaves of Sophora japonica fall off and the staggered branches can be seen more clearly. At this time, it is necessary to trim it carefully. First of all, we should adjust the crown, use rope or lead wire to change the growth direction of branches, and pull adjacent dense branches to the missing branches for fixing, so that the branches of the whole crown are evenly distributed. Then cut off dead branches, thin branches and over-dense branches, and then leave the remaining branches with buds at the highest point of bending according to the strength of branches. Generally, thick branches stay long and thin branches stay short.

3. Pruning modeling of Sophora japonica;

(1) In the first few years after planting Sophora japonica on both sides of the road, scaffolding can be set up on the road surface to guide the branches on both sides of adjacent paths to the scaffolding to make them grow in the opposite direction. A few years later, when the branches were entangled and fixed together, the scaffolding was removed. At this time, a green corridor will appear on the road, forming a unique landscape. You can also plant a locust tree on both sides of the road entrance and trim it according to the above method, which is also a good shape.

(2) In addition, the umbrella surface of Sophora japonica can be trimmed into a corrugated shape. The method is as follows: in the first year, the remaining branches are cut off at the highest bend, in the second year, the drooping branches are cut off at about 15cm, and in the second year, the buds are cut off at the highest bend. Repeated pruning in this way can form a corrugated umbrella cover. If the drooping branches are slightly longer and shorter, a tower-shaped umbrella surface can be formed in a few years, which is very beautiful when planted alone or in rows.