Tatami
Igusa Igusa is a perennial plant of the family of igusa. Igusa smells good. It has a fresh, grassy smell. In English, they are called rushes. Igusa blooms from May through June. The plant grows up to a length of 100 centimeters or less. They grow in marshes where sunshine is good. In Japan, there are 30 kinds of igusa growing in many different areas.Tatami is made from natural igusa that must be flexible from the root to the tip, and the thickness and the color varies slightly.  About 4000 to 7000 igusa are used for the tatami. Generally the best tatami uses more and longer igusa rushes.