Bonsai - Size Classifications

Size Classifications

Not all sources agree on the exact sizes or names for these ranges, but the concept of the ranges is well-established and useful to both the cultivation and the aesthetic understanding of the trees. A photograph of a bonsai may not give the viewer an accurate impression of the tree's real size, and so exhibition catalogs and commercial bonsai offerings may complement a photograph by describing the bonsai's general size class (see table below). The size class implies the height and weight of the tree in its container.

In the very largest size range, a recognized Japanese practice is to name the trees "two-handed", "four-handed", and so on, based on the number of men required to move the tree and pot. These trees will have dozens of branches and can closely simulate a full-size tree. The very largest size, called "imperial", is named after the enormous potted trees of Japan's Imperial Palace.

At the other end of the size spectrum, there are a number of specific techniques and styles associated solely with the smallest common sizes, shohin and shito. These techniques take advantage of the bonsai's minute dimensions and compensate for the limited number of branches and leaves that can appear on a tree this small.

Common names for bonsai size classes
Large bonsai
Common name Size class Dimensions
Imperial bonsai Eight-handed 60–80 in (152–203 cm)
Hachi-uye Six-handed 40–60 in (102–152 cm)
Dai Four-handed 30–48 in (76–122 cm)
Omono Four-handed 30–48 in (76–122 cm)
Medium-size bonsai
Common name Size class Dimensions
Chiu Two-handed 16–36 in (41–91 cm)
Chumono Two-handed 16–36 in (41–91 cm)
Katade-mochi One-handed 10–18 in (25–46 cm)
Miniature bonsai
Common name Size class Dimensions
Komono One-handed 6–10 in (15–25 cm)
Mame One-handed 5–8 in (13–20 cm)
Shohin Palm size 2–6 in (5–15 cm)
Shito Fingertip size 2–4 in (5–10 cm)
Keshitsubo Poppy-seed size 1–3 in (3–8 cm)

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