When digging or selecting bonsai materials, we should pay attention to the selection of wisteria with strong and upright roots and high lignification. Using this material to make wisteria bonsai will get twice the result with half the effort and achieve better results. Pruning is the most direct dwarfing method, which directly shortens the branches that are too high and too long. When the weight of the remaining branches is small, their toughness can support other temporary vertical growth. Pruning time should be chosen before and after flowering in early spring. Before flowering, excessive branches and useless branches and buds on the trunk should be cut off, which can effectively promote the growth of flowering branches.

In winter, indoor acceptance of all kinds of sunshine is relatively poor, and it is easy to grow taller. When the outdoor temperature is about 5 degrees at noon during the day, move the potted plants outdoors or open the window to receive natural light for several hours. It is suggested to use "vertical branch modeling" to vertically locate the main branch. To be a hanging wisteria bonsai, its branches can't grow freely. Wisteria branches are thin and soft, and naturally droop under natural gravity, just like weeping willows. The topping of wisteria does not happen overnight, and it needs to be done frequently throughout the growing season, usually once every three days in summer. Of course, I have to have a pre-judgment and design on the pile shape of bonsai before topping. Since wisteria is a vine with a long trunk, it can be cut off in a suitable position to keep the beauty, leaving only the main branches and trunk needed for bonsai. If a lot of farmyard manure is used in the pot when transplanting in winter, wisteria will naturally bloom in the pot when flowering in spring. If you don't apply a lot of fertilizer, wisteria won't bloom in the coming year and may not live. Before wisteria blossoms, we must have fertile soil.

The other is to use chemicals to inhibit growth. Generally speaking, you can use these, but it is recommended to use them twice a year, which will easily lead to blade deformity. When used, it must be diluted with water according to the prescribed proportion. Spraying and root irrigation once a month can prevent the growth of wisteria.