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Allium Bulbs


Alliums are excellent for bridging the gap between spring-flowering bulbs and summer-flowering perennials. Their neat flower heads lend a unique architectural touch to borders and patio containers. Plant Allium bulbs in clumps or in drifts amongst other plants, leaving the seed heads intact for an architectural autumn display. Make the most of your Allium plants with our guide to planting bulbs and view our informative video.

Allium bulbs
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We have found 10 products.
 

Allium Collection

A fantastic collection of popular allium varieties with spherical architectural flower heads in May and June perched on stiffly upright stems. As the flowers fade, attractive seed heads remain which become straw coloured as the season progresses, persisting throughout autumn. Dot them among herbaceous perennials, at the front of borders or in patio containers where they will attract bees and other pollinating insects. Supplied as bulbs.


  • Collection comprises:
  • Allium aflatunese (16 bulbs) - with globes of mauve-purple flowers up to 10cm (4") across in early summer. Height: 90cm (35"). Spread: 10cm (4"). Bulb size 4/5.
  • Allium sphaerocephalon (24 bulbs) - with unusual oval shaped, purple-green flower heads. Height: 50cm to 1 metre (20" to 40"). Spread: 8cm (3").Bulb size 4/5.
  • Allium caeruleum (50 bulbs) - with bright blue spheres of star-shaped flowers on stiff upright stems. Height: 60cm (24"). Spread: 8cm (3"). Bulb size 4/5.
  • Allium 'Purple Sensation' (10 bulbs) - with spheres of star-shaped purple flowers up to 8cm (3") across. Height: 90cm (36"). Spread: 10cm (4"). Bulb size 10/12.

Useful links:

How to plant bulbs, corms and tubers



 


More info
    • 100 mixed allium bulbs

    • Despatch:
    •  
    • £19.99 £14.99
    • Out of stock

Allium 'Lover's Collection'

Allium hollandicum 'Purple Sensation', Allium cristophii, Allium caeruleum, Ornamental Onion, Star of Persia

If you're new to Alliums, this is a fantastic collection to get you started! These popular RHS AGM varieties produce spherical architectural flower heads in May and June perched on stiffly upright stems. As the flowers fade, attractive seed heads remain which become straw coloured as the season progresses, persisting throughout autumn. Dot 'Allium Lover's Collection' among herbaceous perennials, at the front of borders or in patio containers where they will attract bees and other pollinating insects. Supplied as bulbs.


  • Collection comprises:
  • Allium hollandicum 'Purple Sensation' – An RHS AGM Allium with spherical flower heads up to 8cm (3") across consisting of star-shaped deep violet flowers. Height: 90cm (35"). Spread: 15cm (6").
  • Allium cristophii – Also known as Star of Persia, this RHS AGM variety is mid-height with magnificent lilac-mauve flower heads up to 20cm (8") across. Height: 50cm (20"). Spread: 15cm (6").
  • Allium caeruleum – An RHS AGM variety with dainty, spherical blue flower heads. Height: 60cm (24"). Spread: 10cm (4").

Useful links:

How to plant bulbs, corms and tubers

More info
    • 25 allium bulbs

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

    • Despatch:
    • SAVE* £5  
    • £14.98
    • Out of stock

Allium 'Big Impact Mix'

Ornamental Onion

Add imposing height to your garden borders with our brilliant Allium 'Big Impact Mix'. Easy to grow, this selection will deliver a fantastic mix of sphere shaped allium flowers in an amazing array of colours. Cut some for a vase indoors or leave them where they stand to enjoy their attractive, architectural seed heads later in the season. Height: 90cm (35"). Spread: 15cm (6"). Bulb size: 18/20cm.

Useful links:

How to plant bulbs, corms and tubers

More info
    • 8 allium bulbs

    • Despatch:
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    • £6.99
    • Out of stock
    • 16 allium bulbs

    • Despatch:
    • SAVE* £8  
    • £14.98 £11.98
    • Out of stock
    • 32 allium bulbs

    • Despatch:
    • SAVE* £25  
    • £19.96 £14.96
    • Out of stock

Allium 'Globemaster'

Ornamental Onion

The large, ball-shaped purple flower heads, of Allium 'Globemaster' have a magnificent architectural presence in sunny borders. This well-known, magnificent variety holds an RHS Award of Garden Merit for its outstanding performance. Plant them in large groups for a bold impact. Also excellent as a cut flower for an outstanding displays indoors! Height: 80cm (31"). Spread: 20cm (8").

Useful links:

How to plant bulbs, corms and tubers

More info
    • 1 allium bulb

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

    • Despatch:
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    • £19.98
    • Out of stock

Allium 'Hair'

Alliums provide amazing early summer flowers to bridge the gap between spring and summer bedding. They come in all shapes and sizes, and Allium 'Hair' is a particularly curious type with purple-hearted flowers sporting outrageous green ‘hair’! Alliums thrive in mixed borders, or can be planted into patio containers to provide a focal point. Height: 15cm (6"). Spread: 10cm (4"). Supplied as bulbs. More info
    • 20 allium bulbs

    • Despatch:
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    • £7.99
    • Out of stock

Allium 'Drumstick'

Alliums come in all shapes and sizes and, as they flower in early summer, are ideal to bridge the gap between spring and summer bedding. Allium 'Drumstick' has unusual, egg-shaped flower heads that start green and gradually turn purple from the top, creating a two-tone effect. They’ll thrive in mixed borders, or can be planted into patio containers to provide a focal point. Height: 50cm to 1 metre (20" to 40"). Spread: 10cm (4"). Supplied as bulbs. More info
    • 50 allium bulbs

    • Despatch:
    •  
    • £7.99
    • Out of stock

Allium 'Schubertii'

The sculptural blooms of Allium schubertii create a fantastic, architectural accent when dotted throughout summer borders. An explosion of up to 200 small, pink florets create these magnificent, rounded flower heads that are quite simply a flower arrangers dream! If you can resist cutting them all, they will continue their display into autumn as magnificent seed heads. Height: 60cm (24"). Spread: 20cm (8"). Supplied as bulbs. More info
    • 4 allium bulbs

    • Despatch:
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    • £7.99
    • Out of stock

Allium 'Hairy Collection'

Our Allium 'Hairy Collection' is ideal for bridging the gap between spring and summer bedding. Alliums come in all shapes and sizes, and we’ve selected three gorgeous varieties that sport different ‘hairstyles’! They’ll thrive in mixed borders, or can be planted into a patio container to provide a striking focal point. Height: 15cm (6"). Spread: 10cm (4"). Supplied as bulbs.

  • Collection comprises:
  • Allium ‘Hair’ - A particularly curious type with purple-hearted flowers sporting outrageous green ‘hair’!
  • Allium ‘Drumstick’ - Unusual, egg-shaped flower heads that start green and gradually turn purple from the top.
  • Allium schubertii - An explosion of up to 200 small, pink florets create these magnificent, rounded flower heads.
More info
    • 75 allium bulbs

    • Despatch:
    • SAVE* £12  
    • £11.97
    • Out of stock

Allium 'Summer Beauty'

Ornamental Onion

This popular variety, Allium 'Summer Beauty' has a clump-forming habit which is quite different from most Alliums. Each rhizome produces several stems and this form of ornamental onion is grown primarily for its pom-pom flowers in early summer. The globular blooms are pink in colour, tinged with lilac and they are loved by butterflies, bees and beneficial garden insects. The plant is, however, said to repel aphids, making it a great addition to any garden, including within the vegetable patch. Height 60cm (2'). Spread: 15cm (6").Supplied as bulbs. More info
    • 2 allium bulbs

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

    • Despatch:
    • SAVE* £2  
    • £17.98
    • Out of stock

Allium 'Best sellers Collection'

This is a fantastic collection of popular varieties which produce spherical architectural flower heads in May and June perched on stiffly upright stems. As the flowers fade, attractive seed heads remain which become straw coloured as the season progresses, persisting throughout autumn. Dot them among herbaceous perennials, at the front of borders or in patio containers where they will attract bees and other pollinating insects. Supplied as bulbs.


  • Collection comprises:
  • Allium hollandicum 'Purple Sensation' (4 bulbs)
  • Allium cristophii (8 bulbs)
  • Allium caeruleum (3 bulbs)
  • Allium sphaerocephalon (25 bulbs)
  • Allium neopolitanum (30 bulbs)
  • Allium ostrowskianum (30 bulbs)

Useful links:

How to plant bulbs, corms and tubers

More info
    • 100 mixed allium bulbs

    • Despatch:
    •  
    • £24.99
    • Out of stock