Plant Description

Allium cernuum

Nodding Onion has grassy leaves that produce a strong onion scent. It is attractive to some insects, but repellant to others — bees and butterflies like it, but some ants and spiders do not. 

A nodding onion in bloom.

A nodding onion in bloom, with light pink flowers.

PLANT CHARACTERISTICS

Characteristic Plant Information
Height Up to 2 ft
Growth Rate Fast
Life Cycle Perennial
Moisture Use Low
Drought Tolerance High
Deer Browse No
Wildlife Value Host plant for hairstreak butterflies
Hardiness USDA Zones 4-8
Bloom Time May-July
Bloom Color White to light pink
Habitat Type Meadow or prairie

SCIENTIFIC CLASSIFICATION

Classification Scientific Name
Kingdom Plantae
Clade Angiosperms
Clade Eudicots
Order Asparagales
Family Amaryllidacecae, sub. Alloideae
Genus Allium
Species A. cernuum

Planting information

Sun

Full sun to partial shade

Soil

Well-drained soil, tolerant of clay soils

Special Uses

Pest deterrent, as many animals dislike onion scent; good for pollinators; host plant for hairstreak butterfly caterpillars

Ease of Care

Easy

PLANT IMAGES