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 3 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:

View 4 for 3 bulbs rangeHow to grow bulbs, corms and tubers

More info
    • 8 allium bulbs

    • Despatch: By end of September 2015
    •  
    • £5.99
    • 16 allium bulbs

    • Despatch: By end of September 2015
    •  
    • £9.99
    • 32 allium bulbs

    • Despatch: By end of September 2015
    •  
    • £14.99

Allium 'Globemaster'

Ornamental Onion

Hundreds of starry lilac-purple blooms form the incredible flower heads of this RHS AGM variety. The magnificent, spherical blooms of Allium 'Globemaster' are up to 15cm (6") across! Flowering only once in a season, the blooms are followed by skeletal seedheads for a spectacular autumn display. Undemanding and easy to grow, these purple alliums are guaranteed to add the 'wow' factor to borders and cut flower arrangements. Height: 80cm (31"). Spread: 15cm (6"). Bulb size 18/20.

Useful links:

How to grow bulbs, corms and tubers

More info
    • 1 allium bulb

    • Despatch: By end of September 2015
    •  
    • £8.99
    • 2 allium bulbs

    • Despatch: By end of September 2015
    •  
    • £12.99
    • 4 allium bulbs

    • Despatch: By end of September 2015
    •  
    • £17.99

Allium 'Red Mohican'

Ornamental Onion

Wine red florets form striking spherical flower heads that develop a crest of tiny white blooms on top. The slender stems initially emerge bent but quickly straighten out. The unusual colour and form of Allium 'Red Mohican' makes this an eye catching bulb for punctuating mixed borders and containers, and a superb cut flower. Height: 1m (39"). Spread: 15cm (6"). Bulb size 10+. More info
    • 6 allium bulbs

    • Despatch:
    • Save £9.99  
    • £29.98 £19.99
    • Out of stock