Allium giganteum - Ornamental Onion

Ornamental Onion

Allium giganteum

  • Huge purple balls of tiny star-shaped florets on thick green stems
  • This allium is not used for culinary purposes
  • Produces grayish-green strap-like leaves
  • Attracts bees
  • Bloom Time: Late spring to early summer
  • Flower Size: 15 cm



125-150 cm

15-30 cm

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Growing and Maintenance Tips:

Leaves die back as flowers begin; don't cut back foliage as it feeds the bulb for next year's flower. Once the flower is spent, remove the flower stalk and leave the foliage until it completely dies back, it can then be removed by gently pulling on the leaves. Do not over water and let the soil dry out between waterings.