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  • giant sea holly
  • Eventual height: 0.6m
  • Eventual spread: 0.4m

Eryngium giganteum 'Silver Ghost'

giant sea holly

5 year guarantee RHS award of garden merit Perfect for pollinators
9cm pot £6.99
9cm pot £6.99
3 × 9cm pots £20.97 £18.00
Quantity

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

  • Position: full sun
  • Soil: dry, well-drained, poor to moderately fertile soil
  • Rate of growth: average
  • Flowering period: June and August
  • Hardiness: fully hardy biennial

    Teasel-like pale green flowers, which turn to steely-blue as they mature, are surrounded by a ruff of silvery white bracts. This rosette-forming biennial is great for the front or middle of a sunny, well-drained border. The attractive foliage is displayed to best advantage if the plant is mulched with or planted in gravel. This plant is a biennial, but self-seeds freely. It's also ideal for use in dried flower arrangements.

  • Garden care: Lift and divide large colonies in spring. Avoid the temptation to cut back the flowerheads in autumn as they provide interest in the winter garden.
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