Sweetgrass vs Round-Leaved Sundew - TreeTime.ca

Sweetgrass vs Round-Leaved Sundew

Anthoxanthum nitens (Hierochloe odorata)

Drosera rotundifolia

CUSTOM GROW

CUSTOM GROW

Sweetgrass
Round-Leaved Sundew

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.

Round-Leaved Sundew is a native carnivorous plant, easily recognized by its bright green leaves covered in distinctive red, glandular hairs. These hairs secrete a sticky substance that is used to attract, trap, and digest insects. Their carnivorous nature allows them to survive in nutrient-poor, acidic soils where many other plants may struggle to grow.
They produce small white flowers that grow along the top of a slender, leafless stem. They can be found growing in wetlands, most often among sphagnum moss, in consistently moist, acidic soils. It does best in cooler summer climates and is intolerant of shade. Due to its small size, the plant can be difficult to spot in its natural habitat. Round-Leaved Sundew is an indicator of healthy wetland systems and is valued in ecological restoration and conservation projects.

Sweetgrass Quick Facts

Round-Leaved Sundew Quick Facts

Zone: 1a
Zone: 3a
Height: 0.5 m (1.5 ft)
Height: 0.1 m (0.2 ft)
Spread: 0.5 m (1.5 ft)
Spread: 0.1 m (0.4 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: wet
Growth rate: fast
Growth rate: slow
Life span: short
Life span: short
Growth form: arching to upright, colony-forming
Growth form: rosette-forming
Spreading: rhizomes - high, seeds - low
Spreading: axillary bud plantlets - medium, seeds - low

Toxicity: toxic if large amounts ingested

Foliage: fragrant, bright green
Foliage: round, green with sticky red tentacles
Fall colour: red to marooon
Flowers: tiny white flowers on long leafless stem
Bloom time: 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, 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: roundleaf sundew