Twinflower vs Showy Milkweed - TreeTime.ca

Twinflower vs Showy Milkweed

Linnaea borealis

Asclepias speciosa

CUSTOM GROW

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Twinflower
Showy Milkweed

Twinflower is a native, trailing evergreen ground cover known for its delicate flowers that grow in nodding pairs. These pale pink blooms are described as being sweetly fragrant, attracting native bees and other pollinators.

Growing in cool, moist, acidic soils, the trailing stems form roots as they spread and start to form mats across the forest floor. Due to its woody stem, it is technically classified as a shrub and often referred to as a subshrub or dwarf shrub. This species is well-suited for naturalization, restoration, and conservation projects.

Twinflower (Linneae borealis) was named in honour of Carl Linnaeus, who adopted it as his personal emblem.

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.

Twinflower Quick Facts

Showy Milkweed Quick Facts

Zone: 2a
Zone: 3a
Height: 0.1 m (0.4 ft)
Height: 0.9 m (3 ft)
Spread: 0.9 m (3 ft)
Spread: 0.5 m (1.5 ft)
Light: any
Light: full sun
Moisture: normal, wet
Moisture: dry, normal
Growth rate: slow
Growth rate: fast
Life span: short
Life span: short
Growth form: creeping or trailing, ground cover
Growth form: upright, clump forming
Spreading: stolons - medium, seeds - low
Spreading: rhizomes - high, seeds - high
Maintenance: medium


Toxicity: toxic to pets, livestock, and humans if ingested, can cause skin and eye irritation.
Fall colour: reddish tinge
Flowers: Pink, bell-shaped, fragrant pairs
Flowers: purplish-pink clusters
Bloom time: summer
Bloom time: early to mid summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


Native to: AB, BC, SK, MB, ON, QC, NS, NB, NL, YT, NT, NU, PE
Native to: AB, BC, MB, YT
Other Names: northern twinflower, pink bells