Abstract
Kuroboku stone is a rock formed when lava from Mt. Fuji, Mt. Asama, and other volcanoes hardened on
the surface of the earth. In southern Kanto, kuroboku stone is used in Fuji mounds and Daimyo' s gardens of the Edo period and in gardens of the Taisho and early Showa periods. In the northern Kanto region, kurobok stone is used in some Edo Period gardens, but only in Rock gardens from the Taisho to the early Showa Periods.
This paper introduces rock gardens in the northern Kanto region, such as Tokumeien and Doukutsu Kannon in Takasaki City and Nagame Garden in Midori City, that make extensive use of kuroboku stone. The background of the trend is the implementation of practical training at the Chiba Horticultural College, the development of railroad transportation, and the representation of the times, and is positioned as a significant garden culture of an era.