Woolgrass vs Blue Grama Grass - TreeTime.ca

Woolgrass vs Blue Grama Grass

Scirpus cyperinus

Bouteloua gracilis

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Woolgrass
Blue Grama Grass

Woolgrass is a native perennial sedge that forms dense clumps in wetlands, ditches, and along shorelines. Its ability to thrive in saturated soils and shallow water, combined with its spreading growth habit, makes it especially valuable for waterside & riparian plantings, erosion control, ecological restoration, and naturalization projects.
The distinctive spikelets are covered in brown woolly bristles, which is where it gets the name Woolgrass. It produces seeds that are eaten by waterfowl and small mammals, while its dense stems offer cover and nesting habitat. It grows most actively in spring and fall, slowing or going dormant in the summer heat.

Blue Grama is a native perennial bunchgrass recognized for its blue-green blades and unique seed heads. They grow along one side of the stem and are often compared to eyelashes, eyebrows, or mosquito larvae, which inspired its common names, Eyelash Grass and Mosquito Grass. As the seed heads begin to dry in the fall, they curl, further enhancing the plant’s distinctive appearance. The seeds provide food for birds, and the grass serves as a host plant for certain species of skipper butterflies.

As a warm-season grass, Blue Grama has a slow start in spring and does not actively grow until soil temperatures rise. Its deep roots help with erosion control, and the grass is drought-tolerant once established, thriving even in poor or alkaline soils. It is well-suited for soil stabilization, naturalization, restoration projects, or as an ornamental accent in gardens and landscapes.

Woolgrass Quick Facts

Blue Grama Grass Quick Facts

Zone: 3a
Zone: 3a
Height: 1.5 m (5 ft)
Height: 0.5 m (1.5 ft)
Spread: 0.9 m (3 ft)
Spread: 0.5 m (1.5 ft)
Light: partial shade, full sun
Light: full sun
Moisture: wet
Moisture: dry, normal
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, colony-forming
Growth form: upright, clump-forming
Spreading: rhizomes - medium
Spreading: seeds - medium, tillering-medium


Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: MB, ON, QC, NS, NB, NL, PE
Native to: AB, BC, SK, MB
Other Names: brown woolly sedge, common woolgrass, common woolly bulrush, cottongrass bulrush, marsh bulrush, wool grass
Other Names: blue grama grass, eyelash grass, mosquito grass