Cow Parsnip vs Canada Anemone - TreeTime.ca

Cow Parsnip vs Canada Anemone

Heracleum maximum

Anemonastrum canadense (Anemone canadensis)

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Cow Parsnip
Canada Anemone

Cow Parsnip is a native perennial wildflower known for its tall growth, very large leaves, and broad clusters of white flowers. The abundant blossoms provide nectar and pollen for a wide variety of pollinators, including bees and butterflies. Birds and small mammals feed on its seeds, while the foliage serves as a larval host for certain butterfly species.

Cow Parsnip is often among the first native perennials to establish in disturbed or open sites. It typically grows in moist meadows, along streambanks, forest edges, and roadsides. Although usually a short-lived perennial or biennial, it readily self-seeds and maintains strong populations where conditions are favorable.

Cow Parsnip is the only native Heracleum in North America and should not be confused with the highly invasive Giant Hogweed (H. mantegazzianum).

Note: The sap of the Cow Parsnip can cause phytodermatitis when exposed to ultraviolet light (sunlight). This can cause rashes or even burns. Care should be taken if pruning or handling this plant.

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.

Cow Parsnip Quick Facts

Canada Anemone Quick Facts

Zone: 2a
Zone: 3a
Height: 1.8 m (6 ft)
Height: 0.3 m (1.0 ft)
Spread: 1.2 m (4 ft)
Spread: 0.9 m (3 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: upright
Growth form: spreading, colony forming
Spreading: seeds - low
Spreading: rhizomes - high
Maintenance: medium

Toxicity: sap causes skin irritation

Toxicity: all plants parts toxic if ingested, can cause skin irritation
Foliage: very large, palmate leaves
Flowers: large clusters of white flowers
Flowers: white, cup-shaped
Bloom time: spring to early 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, YT, NT, PE
Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, NT, NU, PE
Other Names: american cow parsnip, common cow parsnip
Other Names: american meadow anemone, meadow anemone, roundleaf anemone, roundleaf thimbleweed