This semi-evergreen perennial has a horizontal rhizome with upright foliage forming a clump habit. It has 2-ranked grass-like glossy green leaves and the small flowers appear in a spadix during summer. 

Hardiness zones 3 to 11 

Acorus gramineus is naturally found in Japan growing on the margins of ponds or water courses on the coast and in the lower mountains. It prefers a wet to well drained fertile loam in an open sunny position and is drought tender but frost resistant.

The Japanese Rush is a hardy small marginally aquatic plant that is used around ponds or creeks for foliage contrast. It is also grown in pots or planter boxes and can be mass planted as a ground cover. This perennial is suitable for coastal or inland regions tolerating most soil conditions and establishing from division 2 to 3 years. ID 973

Acorus (a-KO-rus) / (Ă - ko-rus) gramineus (grah-MIN-ee-us)

Araceae (a-RAY-see-ee)