Sweetgrass vs Slimstem Reedgrass - TreeTime.ca

Sweetgrass vs Slimstem Reedgrass

Anthoxanthum nitens (Hierochloe odorata)

Calamagrostis stricta

CUSTOM GROW

CUSTOM GROW

Sweetgrass
Slimstem Reedgrass

Sweetgrass is a cool-season perennial grass best known for its sweet, vanilla-like fragrance. The scent comes from coumarin in the leaves, which is pleasant to humans but has a bitter taste that makes the plant less appealing to deer and other herbivores. As a cool-season grass, Sweetgrass grows most vigorously in spring and fall, slowing or even going dormant during the heat of summer.

It spreads quickly through creeping rhizomes and can be difficult to remove once established, so it is best planted in areas where its spread will not cause problems. Due to its deep, vigorous root system and preference for moist soils, Sweetgrass is especially useful for erosion control, soil stabilization, riparian plantings, and naturalization projects.

Note: Sweetgrass was formerly classified under the scientific name Hierochloe odorata and its subspecies. The subspecies found in Canada are currently considered two distinct species: Anthoxanthum hirtum, which is native across Canada, and Anthoxanthum nitens, which is native to Eastern Canada. Because these two species are alike and share many overlapping common names, they are often considered as only one species.

Slimstem Reedgrass is a native perennial bunchgrass commonly found in damp meadows, wetlands, and along streams and lakeshores. It thrives in wet, nutrient-poor soils and shows some tolerance to saline conditions. Typically a bunchgrass, it can also spread by rhizomes to form colonies, making it well-suited for soil stabilization, riparian zone planting, and wetland restoration projects.
Slimstem Reedgrass provides valuable cover for small animals and birds, and its dense growth can even serve as nesting habitat for waterfowl in wetland areas. Its seeds offer forage for wildlife, while the tall stems and floral spikes add texture and visual interest to the landscape.

Sweetgrass Quick Facts

Slimstem Reedgrass Quick Facts

Zone: 1a
Zone: 2a
Height: 0.5 m (1.5 ft)
Height: 0.9 m (3 ft)
Spread: 0.5 m (1.5 ft)
Spread: 0.6 m (2.0 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: normal, wet
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: arching to upright, colony-forming
Growth form: upright, clump-forming
Spreading: rhizomes - high, seeds - low
Spreading: rhizomes - high, seeds - low

Toxicity: toxic if large amounts ingested

Foliage: fragrant, bright green
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, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: bison grass, buffalo grass, holy grass, sweet grass, vanilla sweetgrass
Other Names: narrow reedgrass, narrow-leaved reed grass, narrow-spiked reedgrass, slim-stemmed reedgrass