Double stem bonsai is to plant a double stem or two trees of the same kind in a pot. When planting, the shapes of the two stems should be varied, often one big and one small, one high and one low, one oblique and one oblique, so that the shape is beautiful, and it is forbidden to have the same thickness, equal height and similar shape.

If you put two small trees in a pot, when they grow to a certain height, you should take care to promote their branches, so that the branches of the two trees can be properly matched, with different lengths and densities, just like natural growth.

Generally, two trees are close together, otherwise there will be disadvantages and no aesthetic feeling. Usually a large straight plant is planted at one end of the flowerpot, and a small inclined plant is planted next to it, and its branches extend to the other end of the flowerpot.

Extended data:

Types of bonsai:

Tree bonsai and landscape bonsai were formed as early as the Song Dynasty. With the continuous innovation of bonsai art and the increasing richness of bonsai materials, new categories of bonsai in China are gradually emerging. Can be divided into the following seven categories:

The first category, tree bonsai: taking trees as the main material and rocks, figures, birds and animals as the foil, through climbing, pruning, shaping and other technical treatments and horticultural cultivation, the wild giant trees or lush forest scenes are displayed in the basin, which is collectively called tree bonsai. Because the materials of tree bonsai are often excavated from Shan Ye, it is also called stump bonsai.

The second category, landscape bonsai: taking all kinds of rocks as the theme materials and taking the natural landscape as the model. After careful selection, cutting, carving and splicing, they are arranged in shallow pots, showing various landscape scenes such as cliffs, dangerous peaks and canyons, green hills and streams, which are collectively called landscape bonsai, also known as rock bonsai.

The third category, flood and drought bonsai: flood and drought bonsai is a landscape bonsai with plants, rocks, soil, water and accessories as the main materials. Through processing and layout, rocks are used to separate water and soil, and natural water, dry land, trees and rocks are expressed in a shallow basin.

The fourth category, flower bonsai: flower bonsai is called flower bonsai, which takes flowers or woody flowers as the main materials, and after some modification and processing, it is properly matched with rocks and accessories to show the beautiful scenery of flowers in the basin.