Birch Leaf Spirea vs Cow Parsnip - TreeTime.ca

Birch Leaf Spirea vs Cow Parsnip

Spiraea betulifolia

Heracleum maximum

NOT AVAILABLE THIS SEASON - MIGHT RETURN

CUSTOM GROW

Birch Leaf Spirea
Cow Parsnip

Birch Leaf Meadowsweet is a small, rounded shrub, reaching 3 to 4 feet high.

In the early summer, white flowers emerge with dark green foliage. Come fall, birch-like leaves turn a kaleidoscope of red, orange, and purple adding seasonal interest.

Native to Japan and Eastern Asia, this dwarf shrub attracts butterflies and is an excellent option for the front row of a shrub border.

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.

Birch Leaf Spirea Quick Facts

Cow Parsnip Quick Facts

Zone: 4a
Zone: 2a
Height: 0.9 m (3 ft)
Height: 1.8 m (6 ft)
Spread: 0.9 m (3 ft)
Spread: 1.2 m (4 ft)
Light: full sun
Light: partial shade, full sun
Moisture: normal, wet
Moisture: normal, wet
Growth rate: medium
Growth rate: fast
Life span: short
Life span: short
Growth form: upright
Spreading: seeds - low
Suckering: none


Toxicity: sap causes skin irritation
Foliage: very large, palmate leaves
Flowers: large clusters of white flowers
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
Other Names: birch leaf meadowsweet, shiny leaf spirea, white spirea
Other Names: american cow parsnip, common cow parsnip