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  • giant ornamental onion
  • Eventual height: 1.8m
  • Eventual spread: 0.15m

Allium giganteum

giant ornamental onion

Perfect for pollinators
20% OFF alliums
2 litre pot £9.99 £7.99
2 litre pot £9.99 £7.99

This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

  • Position: full sun
  • Soil: fertile, well-drained soil
  • Rate of growth: average
  • Flowering period: June to July
  • Hardiness: fully hardy

    Dense globes of small, star-shaped, lilac-pink flowers top towering stems in summer above pale green leaves, which will start to die back before the flowers open. This gorgeous ornamental onion - the tallest currently available - is perfect for providing vertical interest in a sunny border. Try it dotted in small groups among ornamental grasses, or as part of a Mediterranean scheme

  • Garden care: Split and divide large clumps in autumn or spring.

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