Zelkova serrata
In the Edo era, the felling of trees such as cryptomeria, "Chamaecyparis obtusa, Zelkova serrata", firs (Abies), "Tsuga sieboldii", or "Torreya nucifera" was prohibited. After the Meiji Restoration, trees which were around the cryptomeria tree were cut down, and the area became a Japanese tea plantation. The local people held shinto ceremonies at the local guardian shrine called Suga Shrine on July 12 and October 13 (Festival) thanking the sacred tree. They cleaned the shrine every month. In the summer of 2003, a branch of the tree was broken but the tree was restored to health with the treatment by an arborist.