A bonsai pot should complement a tree in a harmonious way without overpowering it. Color coordination is often a key factor in this process. It is best to choose a pot color that matches or accentuates the colors in the bark, leaves and flowers of the tree.
The texture of the pot can also have a big impact on the overall appearance. Smooth clay finishes are suitable for more feminine trees whereas heavily textured pots bring out the wildness of masculine species. The size of the pot is important for the balance of the composition. It is good practice to choose a pot that is 2/3 of the height of the tree. Generally speaking, oblong pots are preferred for upright species like pines, while square and rectangular pots work well with deciduous trees that develop subtle texture as they mature.
There are many different types of bonsai pots available from a wide range of manufacturers around the world. Some pots are glazed in a wide variety of colors while others are made from a single clay that is then fired. It is a good idea to visit local bonsai nurseries, fairs and other events where potters can be found, to get a feel for the many styles and designs that are available.
The skill of choosing a pot that compliments a specific tree and breathes vibrant life into the composition is an art that can be learned with time and experience. It is also a process that is highly subjective. Many enthusiasts make choices that would seem unconventional or even ‘unsuitable’ to non-enthusiasts. This is because bonsai is an artistic endeavor that ultimately depends on the personal tastes of each enthusiast.