Sweetgrass vs Canada Mint - TreeTime.ca

Sweetgrass vs Canada Mint

Anthoxanthum hirtum/Anthoxanthum nitens (Hierochloe odorata)

Mentha canadensis

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Sweetgrass
Canada Mint

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.

Canada Mint is a native perennial plant known for its fragrant edible leaves. It produces small white to purple flowers in clusters around the stem and is commonly found in wet areas, including ditches and along wetlands, lakes, and rivers. The leaves can be eaten fresh or used to make teas and essential oils.

Canada Mint can spread quickly through underground rhizomes, making it well-suited to naturalization and restoration projects where it can spread freely. In smaller urban yards or gardens, container planting is recommended to help manage its growth. If planted directly in the ground, regular care and maintenance may be needed to limit its spread.

Sweetgrass Quick Facts

Canada Mint Quick Facts

Zone: 1a
Zone: 1a
Height: 0.5 m (1.5 ft)
Height: 0.5 m (1.5 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: spreading, colony forming
Spreading: rhizomes - high, seeds - low
Spreading: rhizomes - high, seeds - low
Maintenance: medium

Toxicity: toxic if large amounts ingested

Foliage: fragrant, bright green
Foliage: aromatic, edible
Flowers: small, white to purple clusters along stem
Bloom time: mid summer to early fall
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, PE
Other Names: bison grass, buffalo grass, holy grass, sweet grass, vanilla sweetgrass
Other Names: american wild mint