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A picture of a Slender Sweet-Flag

Slender Sweet-Flag

Acorus gramineus

Also known as

Japanese Sweet Flag, Grass-Leaf Sweet Flag, Dwarf Sedge, Japanese Rush

Acorus gramineus by Cliff (CC BY 2.0)

Full Sun
Moderate watering
Frost Hardy

7a

USDA zone

-18°C

Minimum temperature

Expected size

Height
Spread

50cm

Max

1m

10cm

Min

50cm

3 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Slender Sweet-Flag

A green Acorus gramineus plant

Slender Sweet-Flag Overview

Acorus gramineus is a clump-forming, grass-like, rhizomatous, herbaceous perennial in the Acoraceae family. It produces narrow, linear green foliage and this plant typically grows to around 30cm tall. It may be grown fully or partially submerged in water. Ideal for planting in wetlands or shallow waters, or at pond edges.

How to propagate Slender Sweet-Flag

Division

Divide the rhizomes at the start of the growing season in spring.

Rhizomes

Special features of Slender Sweet-Flag

Ground cover

Attractive leaves

Wet sites

Other uses of Slender Sweet-Flag

Tolerates coastal conditions