Seaside Arrowgrass vs Cyperus-like Sedge - TreeTime.ca

Seaside Arrowgrass vs Cyperus-like Sedge

Triglochin maritima

Carex pseudocyperus

CUSTOM GROW

CUSTOM GROW

Seaside Arrowgrass
Cyperus-like Sedge

Seaside Arrowgrass is a native perennial commonly found in wetlands, salt marshes, and moist meadows. It is especially suitable for difficult growing sites. Its dense root system helps stabilize soil, while also providing food, cover, and habitat for small animals within the wetland community.

Seaside Arrowgrass is suitable for shoreline stabilization, wetland restoration, and naturalization projects.

Cyperus-like Sedge is a native perennial sedge found in wetlands, marshes, swamps, and along shorelines. Classified as an obligate wetland species, it grows in dense clumps that thrive in saturated soils, helping stabilize wet ground and protect shorelines. These colonies also provide cover for wildlife, while the seeds may be eaten by waterfowl and other birds. It is well-suited to wetland restoration, waterside and riparian zone plantings, and naturalization projects.
Its ornamental appeal comes from the contrast between the upright male floral spikes at the top of the stems and the long, drooping female floral spikes that hang below. These seed spikes resemble those of Cyperus species, giving the plant its common name and making it an attractive addition to naturalized plantings.

Seaside Arrowgrass Quick Facts

Cyperus-like Sedge Quick Facts

Zone: 1b
Zone: 3a
Height: 0.5 m (1.5 ft)
Height: 0.8 m (2.5 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.5 m (1.5 ft)
Light: full sun
Light: partial shade, full sun
Moisture: wet
Moisture: wet
Growth rate: medium
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, clump-forming
Growth form: clump-forming
Spreading: rhizomes-low, seeds-low
Spreading: rhizomes - low, seed - low

Toxicity: can be toxic to humans and livestock

Flowers: very small, pinkish-white, hair like
Bloom time: spring to early summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: AB, SK, MB, ON, QC, NS, NB, NL, PE
Other Names: common arrowgrass, common bog arrowgrass, shore arrowgrass
Other Names: cyperus sedge, cypresslike sedge, false bristly sedge