Thompson & Morgan

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Allium Bulbs

Allium bulbs are easy to grow and undemanding summer flowers, adding height and structure to your beds and borders. Read our guide for more information on how to grow bulbs.

Buy alliums online from our range below and you will achieve a striking display in the autumn, when the structural seed heads catch the eye.

We have found 1 products.

Allium 'Big Impact Mixed'

Ornamental Onion

  • Customer favourite
Add height and structure to your borders with these superb summer-flowering bulbs. Undemanding and easy to grow, Allium 'Big Impact Mixed' will give you a wonderful assortment of flower shapes, sizes and colours that are superb for cut flower displays. Don't forget that their attractive and architectural seed heads will also add autumnal interest later in the season. Height ranges from: 60 -90cm (24-36"). Spread: 15cm (6"). Bulb size: 14/16.

Useful links:

How to grow bulbs, corms and tubers

More info
    • 8 allium bulbs

    • Despatch:
    • £5.99
    • Out of stock
    • 16 allium bulbs

    • Despatch:
    • £9.99
    • Out of stock
    • 32 allium bulbs

    • Despatch: By end of September 2016
    • £14.99