American Sweet Flag vs Canada Anemone - TreeTime.ca

American Sweet Flag vs Canada Anemone

Acorus americanus

Anemonastrum canadense (Anemone canadensis)

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

American Sweet Flag
Canada Anemone

American Sweet Flag is a native perennial wetland plant found along shorelines, streams, wet meadows, and marshes. Its extensive rhizome system allows it to spread and stabilise soil, helping maintain the edges of ponds and streams. This dense growth provides cover for small animals and supports overall wetland biodiversity, while the rhizomes and seeds serve as food for small mammals and waterfowl. Cold-hardy and resilient, it is well-suited for ecological restoration, riparian plantings, erosion control, and naturalization projects.

The plant grows in dense clumps with tall, sword-shaped leaves that release a citrus-like scent when bruised. The rhizomes are aromatic, with a spicy, cinnamon-like fragrance that has been used in perfumery and flavouring. In early summer, American Sweet Flag produces a distinctive floral spike (spadix), adding visual interest to wetland plantings.

Canada Anemone is a native perennial wildflower known for its white, buttercup-like flowers. Blooming from mid-spring to early summer, it attracts a variety of pollinators, including bees, butterflies, and other beneficial insects. Its deep green foliage, characterized by deeply cut leaves with sharply toothed edges, adds texture and visual interest to the landscape even when the plant is not in bloom.

Canada Anemone grows naturally in moist meadows, forest edges, and riparian zones. Spreading rapidly through underground rhizomes, it forms large colonies that can help stabilize soil. It is well-suited to naturalization and restoration projects, including revegetating difficult, wet sites. Also suitable for rain gardens and pollinator gardens, but extra care and maintenance may be required to control its spread in smaller urban yards.

American Sweet Flag Quick Facts

Canada Anemone Quick Facts

Zone: 3a
Zone: 3a
Height: 0.9 m (3 ft)
Height: 0.3 m (1.0 ft)
Spread: 0.6 m (2.0 ft)
Spread: 0.9 m (3 ft)
Light: partial shade, full sun
Light: partial shade, full sun
Moisture: wet
Moisture: normal, wet
Growth rate: fast
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, colony-forming
Growth form: spreading, colony forming
Spreading: rhizomes - high
Spreading: rhizomes - high
Maintenance: medium


Toxicity: all plants parts toxic if ingested, can cause skin irritation
Foliage: fragrant
Flowers: yellow floral spike
Flowers: white, cup-shaped
Bloom time: spring to summer
Bloom time: mid spring to early summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, NT, PE
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, NT, NU, PE
Other Names: american sweetflag
Other Names: american meadow anemone, meadow anemone, roundleaf anemone, roundleaf thimbleweed