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nodding onion

Scientific Name: Allium cernuum

Family: Liliaceae

Category: Monocot

Growth: Forb/herb

Duration: Perennial

Other Names: IA (nodding wild onion), MN (nodding wild onion),

       

Allium cernuum: Nodding Onion or Lady's Leek

Allium cernuum, commonly known as nodding onion or lady's leek, is a charming perennial wildflower prized for its unique, nodding flower heads.

Considerations for Pets

  • This plant emits an onion-like odor when bruised.
  • Plants resemble cultivated onions or daffodils.

Considerations for Children

  • Plants resemble cultivated onions or daffodils.

Taxonomy and Nomenclature

  • Scientific Name: Allium cernuum
  • Common Names: Nodding onion, lady's leek, nodding wild onion, Allegheny Onion, sweet onion, barbecuing onion
  • Family: Amaryllidaceae (previously Liliaceae)
  • Genus: Allium
  • Taxonomic Rank: Subspecies (e.g., Allium cernuum var. cernuum)
  • Synonyms: lady's leek, nodding wild onion

Distribution and Habitat

  • Native to most of the US and adjacent Canada.
  • Found in dry woods, rock outcroppings, prairies, rocky soils on glades, bluff edges, open woods, dry meadows, gravel, rocky or wooded slopes.

Morphological Characteristics and Growth Habits

  • Perennial, growing from an oval or tapered bulb which smells strongly of onion.
  • Grows to 0.5 m (1ft 8in) by 0.3 m (1ft).
  • Hardy to zone (UK) 6 and is not frost tender.
  • Basal, grass-like leaves stay green during flowering.
  • Stem 10-50 cm tall, round or flattened, curved down near the top.
  • Individual flowers have a long stem, forming graceful, chandelier-like heads.
  • Flowers are pastel lilac-pink, white, pink, purple or rose.
  • Flower umbels bend over at the top of the stem and point downward.
  • Blooms July - August.
  • Bulbs often grow in clusters.

Ecological Role

  • Suitable perennial for woodlands and prairies.
  • Attracts butterflies.

Quirky Facts

  • The name "nodding onion" comes from the fact that the flower umbels bend over at the top of the stem and points downward toward the ground.
  • Nodding onion blooms are like tiny fireworks.

Interactions with Other Organisms

  • Attracts butterflies with its tiny, bell-shaped blossoms.

Additional Information

  • Nodding Onion Gardens is a family run native wildflower business, located in Columbia Station, Ohio.
  • Toadshade Wildflower Farm, a mail order nursery in Frenchtown, NJ, specializes in native perennials.
  • Nature Center at Shaker Lakes Annual Plant Sale