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Perennials Allium unifolium | One-leaf Onion
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Allium unifolium | One-leaf Onion

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DESCRIPTION
Allium unifolium, commonly known as one-leaf onion, produces delicate, star-shaped flowers in soft shades of pink to lavender. These blooms form loose clusters that appear in late spring to early summer, creating a charming display in garden beds and borders. The plant's name refers to its unique growth habit, where each bulb typically produces a single strap-like leaf alongside the flower stem.

Native to western North America, particularly California and Oregon, Allium unifolium thrives in a variety of habitats, including grasslands and open woodlands. Its adaptability and ornamental appeal make it a popular choice for naturalized gardens, rockeries, and pollinator-friendly landscapes. This species also performs well as a cut flower, adding a graceful touch to floral arrangements.

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DESCRIPTION
Allium unifolium, commonly known as one-leaf onion, produces delicate, star-shaped flowers in soft shades of pink to lavender. These blooms form loose clusters that appear in late spring to early summer, creating a charming display in garden beds and borders. The plant's name refers to its unique growth habit, where each bulb typically produces a single strap-like leaf alongside the flower stem.

Native to western North America, particularly California and Oregon, Allium unifolium thrives in a variety of habitats, including grasslands and open woodlands. Its adaptability and ornamental appeal make it a popular choice for naturalized gardens, rockeries, and pollinator-friendly landscapes. This species also performs well as a cut flower, adding a graceful touch to floral arrangements.

DESCRIPTION
Allium unifolium, commonly known as one-leaf onion, produces delicate, star-shaped flowers in soft shades of pink to lavender. These blooms form loose clusters that appear in late spring to early summer, creating a charming display in garden beds and borders. The plant's name refers to its unique growth habit, where each bulb typically produces a single strap-like leaf alongside the flower stem.

Native to western North America, particularly California and Oregon, Allium unifolium thrives in a variety of habitats, including grasslands and open woodlands. Its adaptability and ornamental appeal make it a popular choice for naturalized gardens, rockeries, and pollinator-friendly landscapes. This species also performs well as a cut flower, adding a graceful touch to floral arrangements.

 
  • Family: Amaryllidaceae
    Height: 12 to 18 inches
    Width: 6 to 12 inches
    Foliage color: Green, strap-like leaves
    Flower color: Pale pink to lavender, star-shaped clusters
    Bloom time: Late spring to early summer
    Light requirements: Full sun to partial shade
    Water requirements: Moderate; prefers well-drained soil
    Maintenance: Low; minimal care needed once established
    Growing zone: USDA zones 5 to 9
    Wildlife attractors: Bees, butterflies, and other pollinators

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