Woods of the Buddha: Camphor, Kaya, Hinoki and Sandalwood in Japanese Sculpture
Where Chinese and Indian Buddhist sculpture is often in stone or bronze, Japan's is overwhelmingly carved in wood. The wood chosen, and the way it was carved and joined, are among the best clues to when and how a statue was made. They also explain much of the condition you see today.
Camphor
Many of the earliest wooden Buddhist sculptures in Japan, from the seventh century, were carved in camphor (kusunoki), a fragrant, workable wood favoured in continental traditions.
Kaya
From the eighth and ninth centuries, carvers turned to kaya (Japanese torreya), a fine-grained, aromatic wood. Kaya was often used for sculptures carved from a single block, a method called ichiboku-zukuri, which gives early Heian sculpture its weighty, compact presence.
Hinoki
Japanese cypress, hinoki, became the dominant wood from the Heian period onward. Straight-grained, stable and sacred in Shintō tradition, it suited the joined-block technique, yosegi-zukuri, perfected in the eleventh century by the sculptor Jōchō. In this method a figure is assembled from several blocks carved separately and hollowed, allowing larger, lighter, more refined statues.
Other woods
- Katsura and cherry appear in some regional and later works.
- Sandalwood (byakudan) was prized for small devotional images, sometimes left unpainted to show the wood's fragrance and colour.
Hollowing and eyes
Carvers hollowed statues from the back or base, a technique called uchiguri, to reduce weight and prevent cracking as the wood dried. Many hollowed statues contained sealed documents, relics or prayers. From the late Heian and Kamakura periods, inlaid crystal eyes (gyokugan), set from inside the head, gave figures a startling life.
Surfaces
Most statues were finished with lacquer, gesso, pigment or gold. Read Gold on the Buddha: Gilt Surfaces for how to read them.
What this means for collectors
- Joins in a yosegi statue are normal and may open slightly with age.
- Cracks along the grain are common in single-block statues.
- Insect damage should be checked and, if active, treated.
- Humidity matters: keep wood stable, avoiding radiators and direct sun.