Size names are useful shorthand
Bonsai communities use Japanese terms such as shohin for small trees and chuhin for an intermediate size. Exact height limits and measurement methods differ. Some classifications measure from the soil line to the apex; others account for how a tree is presented or grouped.
Scale changes horticultural demands
A small pot gives little buffer against drying, temperature swings and mistakes in watering. A larger tree may hold more substrate and be easier to stabilize, but its branches and root system demand proportionate development. Size is not merely a height label: leaf scale, ramification, trunk thickness, container and display all affect perceived proportion.
Choose size from your conditions
Before aiming for the smallest class, consider the species’ natural leaf and internode size, the light available, how often you can monitor moisture, and the space for winter protection. A manageable medium tree can be a better learning project than a tiny specimen that needs constant attention.
Report the convention
When comparing trees, state the measurement point and the source’s category limits. This avoids false precision and lets readers compare like with like.
Historical archive record