Image for Nodding Onion

Nodding Onion

Scientific name

Allium cernuum


The Nodding Onion is a perennial wildflower species that typically grows about 0.5 m tall. The leaves are flat, narrow, and grass like. The flowers are white or pink coloured, tiny, bell shaped, and appear in drooping clusters on erect stems above the foliage. These flowers bloom in mid to late summer. All parts of this plant may have a slight onion like smell. The flowers are attractive to pollinator species like bees, hummingbirds, and butterflies. Deadhead spent flowers to promote new blooms.

Planting conditions

Nodding Onion grows best in moist or normal conditions with full or partial sun exposure. It prefers sandy loamy soil but can grow in a variety of soil types with neutral to alkaline pH level. It is tolerant of drought, dry soil, and deer. This plant can be naturally found along river or lake shorelines, wet fields, open forests, and rocky slopes.


  • Plant height:
    • Max 1.5m
    • Max 2m
    • Max 3m
    • Any
  • Moisture level:
    • Dry
    • Normal
    • Moist
    • Drought Tolerant
  • Light conditions:
    • Full sun
    • Partial sun
  • Soil type:
    • Sandy
    • Loamy
    • Clay
    • Humus
    • Rocky
  • pH:
    • Basic
    • Normal
  • Depth:
    • Wildflower
  • Eco Zone:
    • 2a
    • 2b
    • 3a
    • 3b
    • 4a
    • 4b
    • 5a
    • 5b
    • 6a
    • 6b
    • 7a
  • Plant type:
    • Wildflower
  • Height:
    • 0.5 m
  • Spread:
    • 0.5 m