This document outlines different styles of bonsai trees. There are general guidelines for all bonsai trees, such as branches alternating from left to right and getting closer together and shorter toward the top. Specific styles described include formal upright, which has a perfectly straight trunk; informal upright, which has a bent or curved trunk; and slanted, where the tree leans to one side. Cascade style mimics trees growing from cliffs, with branches extending below the pot.

1. The basics
There are some general guidelines for all bonsai. Branches alternate from left to right and to
the back from the first branch to the top. The first branch is usually 1/3rd the distance from
the pot to the top, and is usually the longest and thickest. Branches get closer together,
thinner, and shorter as they get closer to the top. There should be no scars on the front, they
are hidden in the back when possible. The tree is off center in the pot. The trunk should be
thick at the bottom, and gradually get thinner along the length to the top. The top should lean
toward the viewer.
Formal Upright
Formal upright style is considered the most difficult style to create. The trunk is perfectly
straight.
Informal Upright Informal upright style is probably the most common bonsai style. The trunk is
not straight, but bent or curved. The apex is located over the center of mass, living the tree a
stable look.

2. Slanted
In a slanted style bonsai, the tree leans to one side. With the apex to one side, the tree looks
unstable. This is usually counteracted by having strong looking roots on the opposite side.
Cascade
Cascade bonsai try to mimic the look of a tree growing from a cliff in a river valley. The first
branch extends down below the bottom of the pot. Foliage pads break up the curving line.
These are generally grown on their side on your bonsai bench, and are only put upright to
display them. The bottom of the branch will be weak and could die if this is not done. Taller,
thinner bonsai pots are used with cascades.

3. Semi-Cascade
Semi-cascade bonsai are similar to full cascades, except they do not extend beyond the bottom
of the pot, but reach out instead.
Exposed roots
Over time as this tree was grown, the soil line has been lowered, exposing the roots. A similar
style is called root over rock, which uses the same technique, but only after planting the tree
over a rock and burying the rock and roots.

4. Forest Planting
Creating a forest planting is probably the easiest way to get a nice bonsai fast. An odd number
of trees of various sizes are planted, all from the same species, in a shallow dish. Cuttings can
be used to eliminate any variation in color.
Literati
This style is characterized by its long trunk and sparse foliage. These are styled to look as
though they are clinging to life in an inhospitable place.

5. Rock plantings
A large rock in a shallow dish with multiple trees and plants creates a beautiful landscape.
Flame
Ginkgo trees are popular material for bonsai, but are very difficult to train. They nearly all
receive this style, which resembles a candle flame.

6. Saikei
These tray landscapes can contain a number of plants and trees.
Twin Trunk
There is usually one larger trunk and one smaller trunk in this style. The two trunks can be
styled together as one tree (as seen here), or separately as a "mother daughter" tree.

7. Windswept bonsai
Clump bonsai

8. Broom bonsai
Sumo Bonsai

9. Root over rock bonsai
Weeping bonsai

10. Tropical with root
Driftwood bonsai