Allium cristophii

Allium cristophii

Ornamental onion

J F M A M J J A S O N D
Flowers
Flowers
Yes
Yes

Key Information

  • Botanical name: Allium cristophii
  • Common name: Ornamental onion
  • Plant type: Bulb

Height: 60cm

Spread: 15cm

Flower colour:
  • Purple
Foliage colour:
  • Green
  • Features: Attractive seed-heads, Attractive to wildlife, Flowers

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Sometimes called the 'Star of Persia,' Allium cristophii is native to Turkey and Iran. It bears huge, spherical flowerheads comprising up to 80 purple flowers with slightly flattened petals that create the perfect ball shape. As these fade, they resemble brown stars, and the complete stem will last for many weeks as part of a dried flower arrangement. The Royal Horticultural Society has given it the Award of Garden Merit (AGM).

Grow Allium cristophii in well-drained soil in a warm sunny site. Leave the spent flowerheads standing over winter to provide winter interest. Mulch annually with well-rotted manure or compost.

Position

  • Sun exposure: Full sun
  • Aspect: South facing, West facing
  • Position in border: Middle
  • Hardiness: Hardy
  • Maintenance: Prefers rich soil
  • Soil type: Well drained/light/sandy, Clay/heavy/moist, Chalky/alkaline

Wildlife

Attracts:
  • Bees

  • Beneficial insects

  • Birds

  • Butterflies / Moths

  • Other pollinators

  • Wildlife features: Nectar/pollen rich flowers

Care routine

J F M A M J J A S O N D
Sow
Sow
Yes
Yes
Plant
Plant
Yes
Yes
Yes
J F M A M J J A S O N D
Divide
Divide
Yes
Yes
Yes
Collect seed
Collect seed
Yes
Yes

Toxicity

Toxic to:
  • People

  • Cats

  • Dogs

  • Birds

  • Horses

  • Livestock

  • Effects: Harmful if ingested

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