Grass looking perennial for average (medium moist) to wet soil, up to shallow water.
Usually forms 0.5-1' tall and wide, compact mounds of golden-yellow leaves with thin green stripes. Leaves are semi-evergreen (evergreen in warmer zones), insignificant flower around May/June.
Full sun to half shade, this is originally bog plant, but performs well in both consistently moist garden soil to shallow standing water of 3-4" deep. But it can be planted in average moist soil, that doesn't dry out much or for longer period.
Hardy in zones 5 to 8. In hotter climates it appreciates some afternoon shade or dappled shade (the leaves tend to burn in hot afternoon sun).
Deer and rabbit resistant plant.
This is easy to grow perennial with nice foliage, that slowly spreads and is long-lived.
Acorus gramineus is native to Japan, China, Korea and East up to India. Originally assigned in Arum family (Araceae), but later moved to it's own Acoraceae family, so with grasses it really shares only the "grassy look".
Best used in moist soil, water gardens, bogs, shallow water, but it does well in open woodland garden, container garden, or as a filler among bigger rocks, simply anywhere where moisture needs match (shares similar conditions as many native Carex - sedges).
Picture copyright : Krzysztof Ziarnek, Kenraiz, Commons Wikipedia
Pot size : square 3.5" x 5" deep pot