Birch Leaf Spirea vs Showy Milkweed - TreeTime.ca

Birch Leaf Spirea vs Showy Milkweed

Spiraea betulifolia

Asclepias speciosa

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Birch Leaf Spirea
Showy Milkweed

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.

Showy Milkweed is a native perennial wildflower known for its fragrant clusters of pink to purple, star-shaped flowers. It is an essential plant for Monarch butterflies, acting as a critical host plant for caterpillars and a nectar source for adults. Blooming from early to mid-summer, these flowers also supply nectar to many other pollinators, including bees, butterflies, moths, and hummingbirds.

Ideal for butterfly conservation, pollinator gardens, and naturalization projects, Showy Milkweed thrives in a wide range of soils, including dry and rocky ground. While it spreads via underground rhizomes to form colonies, it is much less aggressive than Common Milkweed (Asclepias syriaca).

Note: All parts of the plant contain toxic cardiac glycosides, especially the milky sap. Do not ingest any part of the plant and prevent sap from contacting skin or eyes. Toxic to humans, pets, and livestock.

Birch Leaf Spirea Quick Facts

Showy Milkweed Quick Facts

Zone: 4a
Zone: 3a
Height: 0.9 m (3 ft)
Height: 0.9 m (3 ft)
Spread: 0.9 m (3 ft)
Spread: 0.5 m (1.5 ft)
Light: full sun
Light: full sun
Moisture: normal, wet
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: short
Life span: short
Growth form: upright, clump forming
Spreading: rhizomes - high, seeds - high
Suckering: none
Maintenance: medium


Toxicity: toxic to pets, livestock, and humans if ingested, can cause skin and eye irritation.
Flowers: purplish-pink clusters
Bloom time: early to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, MB, YT
Other Names: birch leaf meadowsweet, shiny leaf spirea, white spirea