22/12/2025
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International and Japanese Bonsai Size Classification
The following is a widely accepted bonsai size classification used internationally and in Japan, based primarily on tree height and handling requirements.
1. Miniature Size
These are the smallest bonsai categories and usually require specialized tools and meticulous care.
Keshi-tsubu: Extremely small, about the size of a sesame seed; height does not exceed 3–5 cm.
Sh*to: Fingertip-sized bonsai, typically 5–10 cm tall.
Mame: Bean-sized bonsai, approximately 7–15 cm in height.
2. Small Size
This category is very popular due to ease of care and suitability for limited spaces.
Shohin: A highly popular standard size, generally under 20–25 cm tall; small enough to be held with one hand.
Komono: General small-sized bonsai, usually 15–25 cm in height.
3. Medium Size
Ideal for display in homes or small garden settings.
Katade-mochi: Still liftable with one hand but noticeably heavier; approximately 25–46 cm tall.
Chumono: Medium-sized bonsai requiring two hands to lift; height ranges from 41–91 cm.
4. Large Size
Commonly displayed in outdoor gardens or spacious courtyards.
Omono: Large bonsai that typically require two people (four hands) to lift; height ranges from 76–122 cm.
5. Imperial Size
Hachi-uye: Very large bonsai, exceeding 1–2 meters in height. Often referred to as Garden Bonsai or Imperial Bonsai, these trees represent the highest level of long-term cultivation and landscape integration.