Bonsai is a Japanese term that designate plants placed on a tray (“bon” means “tray” and “sai” means “planting”). It is specially made for interior decoration purposes. Creating and taking care of a bonsai is not as easy as just putting a plant on tray or pot and waiting that it grows up. To make a Bonsai precious, you need to take care of it more patiently, such as watering every day, cutting the unexpected branch and rearrange its branch so it looks better and unique. A good bonsai usually needs two or three years for the plant to look in its final shape but in a smaller size as a miniature.
Bonsai Culture has some style, it can depend on its trunk orientation, trunk and bark surface, and also on its roots.
This bonsai has a straight tree and tapering trunk. Its trunk and branches are thick and broad on the bottom and small on the top. When you observe it, the shape of the bonsai are triangular and symmetry. Other styles are informal upright, the differences with the formal style are its trunk that doesn’t straight but are in an irregular form.
Cascade Bonsai seems like a tree that fall down from the side of a mountain. The top of the trunk falls below the base of the pot. To make cascade bonsai, usually the trunk is tall and small so it will be easy to arrange. Other variants of cascades are semi-cascade where the trunk fall just at the level of the pot, the other style is multi-trunk cascade which have more than one trunk that fall to the bottom.
The roots are exposed in a way to be thought clearly as an extension of the trunk. The roots can be exposed for about half or one-three from the total height.
one similar style is Root-over-rock (Sekijoju) where the roots are wrapped around the rock. The rock is at the bottom of the tree and the roots cling on it decent to the soil.
This bonsai has two or more trunk that rise from a tree. Usually, the trunks are two (Sokan), three (Sankan), five (Gokan), seven (Nanakan) or nine (Kyukan).
In multi-tree bonsai, ordinary bonsai would use trees of the same species. Just like multi-trunk, this bonsai has one major tree (the big one) and a minor tree that is smaller. The variants are two-tree (Soju), three-tree (Sambon-yose), five-tree (Gohon-yose), seven-tree (Nanahon-yose), nine-tree (Kyuhon-yose) and Forest that has many trees (Yose-eu).
Today, people make bonsai with various style and not always depending on the previously listed style. Because every Bonsai is unique so every Bonsai is more precious.