Buttonbush vs Showy Milkweed - TreeTime.ca

Buttonbush vs Showy Milkweed

Cephalanthus occidentalis

Asclepias speciosa

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Buttonbush
Showy Milkweed

Buttonbush is a moisture loving shrub that provides year round interest.

It has round, fragrant flowers resembling small buttons or pincushions. The flowers transform into small reddish-brown fruit that persists into winter while the leaves take on shades of red in fall.

Providing essential food to bees, butterflies, and other insects, this shrub is versatile. Try it in your next 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.

Buttonbush Quick Facts

Showy Milkweed Quick Facts

Zone: 4a
Zone: 3a
Height: 2.4 m (8 ft)
Height: 0.9 m (3 ft)
Spread: 1.5 m (5 ft)
Spread: 0.5 m (1.5 ft)
Light: any
Light: full sun
Moisture: normal, wet
Moisture: dry, normal
Growth rate: medium
Growth rate: fast
Life span: long
Life span: short
Growth form: upright, clump forming
Spreading: rhizomes - high, seeds - high
Suckering: low
Maintenance: medium
Maintenance: medium


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


Native to: ON, QC, NS, NB
Native to: AB, BC, MB, YT