Japanese Sweet Flag (Acorus Gramineus) is a perennial aquatic in the Acoraceae family with easy care difficulty. It requires high watering and full sun or partial shade light in USDA hardiness zones 5-9. This plant is safe for cats and dogs. It can be grown indoors.

Acorus gramineus is a semi-evergreen, clump-forming aquatic or marginal perennial with grass-like narrow leaves, commonly used as ground cover in moist or wet soils.