Pearly Everlasting vs Sweetgrass - TreeTime.ca

Pearly Everlasting vs Sweetgrass

Anaphalis margaritacea

Anthoxanthum nitens (Hierochloe odorata)

CUSTOM GROW

CUSTOM GROW

Pearly Everlasting
Sweetgrass

Pearly Everlasting is a native perennial wildflower known for its clusters of white, papery flowers with yellow centres. These long-lasting blooms appear throughout summer, and the silver-grey foliage adds contrast to the landscape. Its nectar supports a variety of pollinators and serves as a host plant for painted lady caterpillars.

Pearly Everlasting is also used in dried flower arrangements. It is well-suited for pollinator gardens, naturalization, ecological restoration, and low-maintenance landscapes.

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.

Pearly Everlasting Quick Facts

Sweetgrass Quick Facts

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


Toxicity: toxic if large amounts ingested
Foliage: wooly hairs
Foliage: fragrant, bright green
Flowers: white, papery, with yellow centers
Bloom time: summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, PE
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Other Names: western pearly everlasting
Other Names: bison grass, buffalo grass, holy grass, sweet grass, vanilla sweetgrass