Allium cernuum

Common Names

Nodding Onion, Nodding Pink Onion, Nodding Wild Onion, Wild Onion, Lady's Leek, New Mexican Nodding Onion

Summary

Allium cernuum, commonly called nodding onion, is a North American native perennial bulb in the Amaryllidaceae family. It forms a basal rosette of grass-like leaves and sends up a leafless flowering stem that bears an umbel of pink or white nodding flowers; the nodding inflorescence and a mild onion scent are distinctive, with plants typically growing 12–18 inches tall and forming clumps that spread by offsets and seed, attracting bees, butterflies, and other pollinators.

In cultivation, nodding onion prefers full sun to partial shade and well-drained soils, tolerates drought after establishment, and is hardy in zones 3–8. It self-seeds readily and spreads by bulb offsets, making it suitable for naturalized areas, rock gardens, borders, or meadow plantings. It is deer resistant, attractive to pollinators, and has edible bulbs and other parts that can be used as seasoning, contributing culinary value. Plant spacing is typically 6–12 inches.

Lifecycle

Perennial

Height

12-24 inches

Spread

6-12 inches

Hardiness Zones

Zones 4-8

Sunlight Requirements

Ideally Full Sun, tolerates Partial Sun and Partial Shade.

Soil Type

Well-drained soil

Soil Drainage

Well-drained soil

Soil pH

Neutral to alkaline soil (pH around 7 or higher)

Bloom Color

Pink to lavender, sometimes white.

Bloom Time

Summer to Fall

Foliage Color

Green

Fall Foliage Color

Blue, Green

Leaf Lifecycle

Deciduous

Growth Rate

Slow to moderate growth, gradual spread by seed and bulb offsets, forming small clumps over 2–5 years

Seasons of Interest

Spring and Summer

Propagation Methods

Seeds, Division

Attracts Wildlife

Attracts bees and butterflies