Chabosekisho Japanese Sweet Flag. I found this incredibly dwarf Acorus in a nursery near Niigata, Japan, which is on the west coast on the China Sea. So far it appears to only get about 1-3 inches high and makes a little mounding dark green clump. This selection would make a great combination plant in a bonsai pot because of its dwarfness. We are growing it in full sun where it is doing quite well. One characteristic of Acorus gramineus is that it will tolerate wet feet so it is a great miniature plant for a tiny water garden. The 'Chabosekisho' is the middle plant in the third picture.