Seaside Arrowgrass vs Yellow Hedysarum - TreeTime.ca

Seaside Arrowgrass vs Yellow Hedysarum

Triglochin maritima

Hedysarum sulphurescens

CUSTOM GROW

CUSTOM GROW

Seaside Arrowgrass
Yellow Hedysarum

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.

Yellow Hedysarum is a native perennial wildflower recognized for its clusters of pale yellow to creamy-white, pea-like blooms. Flowering from late spring into summer, it adds subtle colour to grasslands, roadsides, and open woods while attracting a variety of pollinators, especially bumblebees.

As a nitrogen-fixing plant, Yellow Hedysarum enriches soils and supports the growth of surrounding vegetation. Its deep taproot and extensive root system make it drought-tolerant and effective at stabilizing soil. Grizzly bears are known to dig up and eat the nutritious taproot. Its resilience and ecological value make it well-suited for restoration, naturalization, pollinator gardens, and erosion control projects.

Seaside Arrowgrass Quick Facts

Yellow Hedysarum Quick Facts

Zone: 1b
Zone: 2b
Height: 0.5 m (1.5 ft)
Height: 0.5 m (1.5 ft)
Spread: 0.3 m (1.0 ft)
Spread: 0.2 m (0.8 ft)
Light: full sun
Light: partial shade, full sun
Moisture: wet
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, clump-forming
Growth form: ascending to upright
Spreading: rhizomes-low, seeds-low
Spreading: seeds - low

Toxicity: can be toxic to humans and livestock

Flowers: very small, pinkish-white, hair like
Flowers: creamy yellow, in dense spikes
Bloom time: spring to early summer
Bloom time: late spring to 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, BC
Other Names: common arrowgrass, common bog arrowgrass, shore arrowgrass
Other Names: sulphur hedysarum, sulphur sweet-vetch, yellow sweet-vetch