Formal upright style – The trunk is straight and tapers toward the top. The branches of the bonsai must gradually become shorter and thinner from the bottom to the top, be horizontal compared with the trunk, or bent slightly downwards. The roots at the base of the trunk are nicely spread. The whole composition must be in balance with the trunk and the pot.
In nature, trees are forced into all kinds of shapes under the influences of weather, wind and placement. Consequently, bonsai trees can have many shapes and sizes and, depending on their way of growing, they are grouped into various styles and shapes.
Maybe some shapes seem strange and unnatural, but they are all based on the way trees grow in nature. Each tree, however, has its own character and within a certain style there is still an enormous variety. Usually a bonsai tree is given its name according to its shape or the number of trunks it has.
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