Japanesse sweetflag is a flowering monocot in the the s weetflag family (Acoraceae) native to Japan, Korea and eastern Asia. The Genus name comes from the Greek word acoron, which means "pupil". The specific epithet comes from the Latin word meaning grass referring to its grass-like appearance.. The clump-forming plant grows up to 1 foot tall and spreads by rhizomes to form a ground cover. It grows in partially submerged conditions or very wet soils in full sun to partial shade. In hot summer areas, it will do best with some afternoon shade. Plant 8 to 12 inches apart to allow room to spread. The spring flowers are insignificant and are followed by small berries. The plant is grown for its long and narrow leaves and grass-like appearance. Plant along streams, bogs, ponds, in wet woodlands, and along water banks, It can be used for an edging groundcover or in a container if the soil is kept moist. Insect, Disease, or Other Plant Problems: No significant problems. However, if soils are dry, issues can arise (such as leaf scorching).
Curated pairwise relationships between this plant and others in the library — who feeds
whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.
No curated interactions recorded for this species yet.
Also noted by NC State
Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell
apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.