The specimen plantations
In the northeastern part of the specimen plantations, there is a 500-square-meter (5,400 square feet) grassy open area with a weeping cherry tree in the center that announces the arrival of spring. Additionally, in the corner of the area, you can see tropical bamboos like Bambusa multiplex (Lour.) Raeushel/Ho-rai-chiku and Bambusa multiplex (Lour.) Raeushel var. elegans (Koidz.) Muroi/Ho-o-chiku growing in clumps.
There are two types of bamboo groves : Diffuse form and Clump form. Diffuse form bamboo groves are formed with bamboos that are warm-temperate. Clump form bamboo groves are formed with bamboos that are tropical and subtropical. In this Specimen Garden, the tropical Bambusa multiplex (Lour.) Raeushel/Ho-rai-chiku which grows vastly in Japan can be seen. Additionally specimen plantations Timber Bamboo (Ryoku-Chiku), which has been typically difficult to grow in Japan, is abundantly grown in the Bamboo specimen plantations to welcome visitors.
In addition, a concrete planting frame has been set up around the area of this specimen plantations, where a variety of academically valuable bamboo have been planted.