Allium 'Ostara'

ornamental onion or allium bulbs

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3 bulbs £4.99 £3.99
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9 bulbs £13.50 £10.80
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Buy Allium 'Ostara' ornamental onion or allium bulbs: Puts on a long-lasting display in the border

  • Position: full sun
  • Soil: fertile, well-drained soil
  • Rate of growth: average
  • Flowering period: May to June
  • Hardiness: fully hardy
  • Bulb size: 12/+

    Said to be a cross between Allium karataviense and A. atropurpureum, this new form is relatively compact, but very sturdy. The long-lasting flower heads are held on stout stems from late spring, attracting bees and other pollinators in their droves, while adding structure and colour to the planting scheme. Also, unlike many of the other alliums, the foliage of 'Ostara' will often stay lush and green during the flowering season.

  • Garden care: Plant bulbs 15cm deep and 15cm apart to enjoy the full effect of the flowers. Avoid excessive soil moisture, and split and divide large clumps in autumn or spring. Resiste cutting back the faded flowers as these will go on to produce decorative seedheads.

  • CAUTION do not eat ornamental bulbs

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Eventual height & spread

Eventual height and spread
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