Junegrass vs Seaside Arrowgrass - TreeTime.ca

Junegrass vs Seaside Arrowgrass

Koeleria macrantha

Triglochin maritima

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Junegrass
Seaside Arrowgrass

Junegrass is a native, low-growing perennial bunchgrass commonly found in prairies and open woodlands. It is a great choice for prairie restoration and naturalization projects or an attractive accent in ornamental plantings. Spear-shaped seed heads rise above the gray-green lower leaves, maturing to a tan color. Flowering earlier than other upright prairie grasses, it greens up quickly in spring and maintains its appeal well into the fall. It is shorter in stature and rarely forms thick stands, which adds to its understated visual appeal.

Adapted to cooler climates, Junegrass thrives in well-drained, rocky, sandy, or gritty soils and can tolerate drought, cold, and high altitudes. It actively grows in spring and fall when soil temperatures are cool, but in areas that are too hot or humid, it may go dormant by late summer.

As a perennial, it dies back to the crown each winter, it will regrow from the base in the spring. Avoid disturbing the crown during late winter to ensure healthy growth the following season.

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.

Junegrass Quick Facts

Seaside Arrowgrass Quick Facts

Zone: 3a
Zone: 1b
Height: 0.5 m (1.5 ft)
Height: 0.5 m (1.5 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.3 m (1.0 ft)
Light: full sun
Light: full sun
Moisture: dry, normal
Moisture: wet
Growth rate: very fast
Growth rate: medium
Life span: short
Life span: short
Growth form: upright, clump-forming
Spreading: rhizomes-low, seeds-low
Suckering: none


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, YT, NT
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: koeleria cristata, prairie junegrass, prairie koelers grass
Other Names: common arrowgrass, common bog arrowgrass, shore arrowgrass