White Meadowsweet vs Cow Parsnip - TreeTime.ca

White Meadowsweet vs Cow Parsnip

Heracleum maximum

Spiraea alba

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Cow Parsnip
White Meadowsweet

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.

White Meadowsweet is a woody, deciduous shrub that begins to bloom in early summer with small white and pink flowers. Its foliage turns from a light green into an attractive golden-yellow later in the fall.

The White Meadowsweet, also known as Mead-Wort or Bride-Wort, is favored by birds and butterflies but is largely ignored by deer. They produce small brown berries in the summer, and while they are technically edible, they are not sweet and are more desired by wildlife.

Cow Parsnip Quick Facts

White Meadowsweet Quick Facts

Zone: 2a
Zone: 3a
Height: 1.8 m (6 ft)
Height: 1.2 m (4 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
Spreading: seeds - low
Suckering: high

Toxicity: sap causes skin irritation

Foliage: very large, palmate leaves
Fall colour: golden yellow
Flowers: large clusters of white flowers
Flowers: white, small
Bloom time: 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, SK, MB, ON, QC, NS, NB, NL, PE
Other Names: american cow parsnip, common cow parsnip
Other Names: mead wort, meadowsweet, narrowleaf meadowsweet, pale bridewort, pipestem