Twinflower vs Nodding Onion - TreeTime.ca

Twinflower vs Nodding Onion

Allium cernuum

Linnaea borealis

NOT AVAILABLE THIS SEASON - MIGHT RETURN

CUSTOM GROW

Nodding Onion
Twinflower

Nodding Onion is a native perennial wildflower known for its nodding clusters of flowers that range in color from white to pink to purple. The lightly scented blooms provide pollen and nectar for pollinators, especially bees, which can collect while hanging upside down, a capability most other insects lack.

The narrow, grass-like leaves of the Nodding Onion can be used as a seasoning in cooked dishes, though bulbs and raw leaves should not be eaten in large quantities. All parts of the plant have an onion-like aroma when bruised, which helps deter deer and rabbits. They can self-seed readily, so removing spent blooms helps manage their spread. Tolerant of a range of soils, including alkaline, it is well-suited for a variety of plantings, including pollinator gardens and naturalization 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.

Nodding Onion Quick Facts

Twinflower Quick Facts

Zone: 3a
Zone: 2a
Height: 0.3 m (1.0 ft)
Height: 0.1 m (0.4 ft)
Spread: 0.2 m (0.5 ft)
Spread: 0.9 m (3 ft)
Light: partial shade, full sun
Light: any
Moisture: dry, normal
Moisture: normal, wet
Growth rate: fast
Growth rate: slow
Life span: short
Life span: short
Growth form: upright to spreading, clump-forming
Growth form: creeping or trailing, ground cover
Spreading: seeds - high
Spreading: stolons - medium, seeds - low
Maintenance: medium

Toxicity: raw leaves and bulbs can be midly toxic

Foliage: smells of onion when crushed, edible
Fall colour: reddish tinge
Flowers: white, pink, or purple nodding clusters
Flowers: Pink, bell-shaped, fragrant pairs
Bloom time: late spring to summer
Bloom time: summer
Hybrid: no
Hybrid: no
Catkins: no
Catkins: no


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