Twinflower vs Silky Lupine - TreeTime.ca

Twinflower vs Silky Lupine

Lupinus sericeus

Linnaea borealis

CUSTOM GROW

CUSTOM GROW

Silky Lupine
Twinflower

Silky Lupine is a native perennial wildflower known for its upright spikes of blue to violet flowers. Blooming from late spring into summer, the nectar-rich, showy blossoms attract a variety of pollinators, especially bees and butterflies. The plant’s fine, silky foliage provides soft texture and visual interest, enhancing landscapes throughout the growing season.

Silky Lupine is a nitrogen-fixing plant that enriches soils and supports surrounding vegetation. Its deep roots stabilize soil, and it spreads naturally by ejecting seeds from drying pods. If spread isn’t desired, new seedlings are easy to remove. While it is foraged by some wild animals, it contains alkaloids that are toxic to livestock. Silky Lupine is well-suited to pollinator gardens, naturalization plantings, erosion control, and ecological restoration projects.

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.

Silky Lupine Quick Facts

Twinflower Quick Facts

Zone: 4a
Zone: 2a
Height: 0.6 m (2.0 ft)
Height: 0.1 m (0.4 ft)
Spread: 0.5 m (1.5 ft)
Spread: 0.9 m (3 ft)
Light: any
Light: any
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: slow
Life span: short
Life span: short
Growth form: clump-forming
Growth form: creeping or trailing, ground cover
Spreading: seeds - high
Spreading: stolons - medium, seeds - low
Maintenance: medium

Toxicity: toxic to sheep and other livestock

Foliage: Silky-haired, palmately compound leaves
Fall colour: reddish tinge
Flowers: Blue to violet pea-like flowers
Flowers: Pink, bell-shaped, fragrant pairs
Bloom time: mid to late summer
Bloom time: summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


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