Acorus gramineus: Japanese Rush – Golden Grass-Like Foliage for Wet Sites

Acorus gramineus – Japanese Rush, Golden Japanese Sweet Flag

Acorus gramineus, the Japanese Rush or Sweet Flag, is a grass-like, evergreen perennial that thrives in wet conditions. It forms dense tufts of narrow, sword-shaped leaves. The species is green, but golden and variegated cultivars are common. The foliage is sweetly fragrant when crushed. Insignificant flowers appear on a lateral spadix. It spreads slowly by rhizomes.

Japanese Rush is one of the few "grasses" that loves constantly moist to wet soil, even shallow standing water. It also tolerates average garden soil if not allowed to dry out. It grows in full sun to part shade. Perfect for pond margins, bog gardens, water features, and damp woodland paths. The golden forms brighten shady, wet areas. A problem-solver for wet sites.

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