Allium Bulbs

Creating the most magnificent display, Alliums come in all sorts of shapes and sizes. Although a firm favourite with avid gardeners, these are most popular with bees, butterflies and insects who can not resist those nectar-rich flowers. Gigantic alliums such as Giganteum will create drama planted in borders, whilst Wild Garlic will fill the air with its scent after those spring showers.

 

Like everything we supply here at Boston Seeds, we pride ourselves on supplying professional quality - and for flower bulbs, that means BIG! Our bigger bulbs produce bigger, better and bolder flowers. Choose from our exciting range of varieties - allium surprise bulb collection, old favourites, garden classics as well as striking new lines for 2021.

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BS Wild Garlic Bulbs (Allium ursinum)

A wild relative of chives, Wild Garlic (or Ramsons) grows from a small bulb and often spreads to form large clumps. It can be found in damp woods, scrub, hedges and on shady banks, where its garlicky aroma will fill the air. The leaves are edible but have a surprisingly mild flavour.

  • This is an excellent plant for ground cover in a wet corner of the garden. 
  • These wild garlic bulbs are UK native
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Allium Surprise Bulb Collection
September Delivery
Allium Surprise Bulb Collection

These magnificent allium flower heads supply a real feast of nectar for pollinating insects. This pack contains a minimum of 4 varieties of alliums ranging in height, shapes and colours to create bold features in the garden or a great floral display as dried flowers.

  • Height (cm): 100 - 120cm
  • Bulb Size (cm): 6 - 20cm
  • Blooms: May- June
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Aflatunense Allium Bulbs
September Delivery
Aflatunense Allium Bulbs

Producing large spherical flower heads, that are a fantastic lilac purple. These are a must to attract bees and other pollinators into your garden.

  • Height (cm): 70cm
  • Bulb Size (cm): 10 / 12cm
  • Blooms: May/June
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Ambassador Allium Bulbs
September Delivery
Ambassador Allium Bulbs

A structural masterpiece! This stunning giant allium will add height to your borders as well as attracting an array of bees, butterflies and other pollinators to fill your garden with early summer flurry. Ideal for use as dried cut flowers in your home once they have finished flowering.

  • Height (cm): 130cm
  • Bulb Size (cm): 20+ cm
  • Blooms: June/ July
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Atropurpureum Allium Bulbs
September Delivery
Atropurpureum Allium Bulbs

Looking stunning when planted in a border amongst contrasting ornamental grasses and other foliage, these giant deep purple spherical flowers appear on a tall upright stem. 

  • Height (cm): 75cm
  • Bulb Size (cm): 7 / 8cm
  • Blooms: May/June
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Caeruleum Allium Bulbs
September Delivery
Caeruleum Allium Bulbs

Easy to grow, these deep aqua blue blooms will appear mid-May adding a boost of colour into your beds' borders or pots. they can be in partial shade or full sun and prefer well-drained soils.

  • Height (cm): 60cm
  • Bulb Size (cm): 4 / 5cm
  • Blooms: May/June
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Christophii Allium Bulbs
September Delivery
Christophii Allium Bulbs

A more unusual Allium, the Christophii form the classic globe flower head but produce multiple starburst flowers per stem. Those early summer dews bring these blooms alive with a shimmer of silver, these lilac flowers come into their own.

  • Height (cm): 40cm
  • Bulb Size (cm): 10 / 12cm
  • Blooms: June
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Cowanii Allium Bulbs
September Delivery
Cowanii Allium Bulbs

These small dainty pure white blooms have multiple flowers per stem. These are a smaller allium and ideal for adding extra colour into your borders yet also good for pots and cut flowers.

  • Height (cm): 40cm
  • Bulb Size (cm): 5+ cm
  • Blooms: June
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Giganteum Allium Bulbs
September Delivery
Giganteum Allium Bulbs

Large violet-purple globes, that open up to 6 inches across, these giant alliums add structure and focus to borders and beds along with a great talking point for garden parties.

  • Height (cm): 150cm
  • Bulb Size (cm): 20cm+
  • Blooms: June/July
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Gladiator Allium Bulbs
September Delivery
Gladiator Allium Bulbs

Standing over a meter high these enormous lilac/ purple globe heads can be up to 15cm across. These make great cut flowers and will also spread over time to create a dense display of tall blooms.

  • Height (cm): 120cm
  • Bulb Size (cm): 20cm+
  • Blooms: June
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Globemaster Allium Bulbs
September Delivery
Globemaster Allium Bulbs

The later flowering Globemaster is one of the giant alliums, adding height and attracting a flurry of pollinating insects to your garden. These giant bulbs produce the most magnificent flower heads along with a sweet scent.

  • Height (cm): 100cm
  • Bulb Size (cm): 20+ cm
  • Blooms: July
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Graceful Beauty Allium Bulbs
September Delivery
Graceful Beauty Allium Bulbs

Producing several small star-like flowers on each stem, the flower heads open to reveal beautiful crisp white flowers with purple centres. Suitable for borders, these also look stunning as part of a bulb lasagne in pots.

  • Height (cm): 40cm
  • Bulb Size (cm): 6+ cm
  • Blooms: June/ July
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Moly Allium Bulbs
September Delivery
Moly Allium Bulbs

A firm favourite with the bees, these golden yellow blooms appear with multiple flowers on each stem. Excelling in woodland areas they are a fast-growing hardy allium.

  • Height (cm): 25cm
  • Bulb Size (cm): 5+ cm
  • Blooms: June/ July
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Mont Blanc Allium Bulbs
September Delivery
Mont Blanc Allium Bulbs

Either planted in groups or individually, these stunning giant alliums are a sight to behold. Their tall stems support spheres of creamy white clusters of flowers. High in pollen, they are perfect for attracting busy bees to your garden.

  • Height (cm): 120cm
  • Bulb Size (cm): 20+ cm
  • Blooms: May/June
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Mount Everest Allium Bulbs
September Delivery
Mount Everest Allium Bulbs

Exuberant pure snowy white gigantic blooms, the Mount Everest Alliums are a real showpiece and head-turner. Suitable for adding height and structure into borders and beds.

  • Height (cm): 120cm
  • Bulb Size (cm): 20+cm
  • Blooms: June
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Multi Bulbosum Nigrum Allium Bulbs
September Delivery
Multi Bulbosum Nigrum Allium Bulbs

These fantastic white/ green globe flower heads will add height and structure to your beds and borders. Planted next to standard purple alliums they will really accentuate each other.

  • Height (cm): 90cm
  • Bulb Size (cm): 10 / 12cm
  • Blooms: May/June
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Neapolitanum Allium Bulbs
September Delivery
Neapolitanum Allium Bulbs

Planted in mass, these dainty little alliums have delicate clusters of pure white flowers appearing on one stem. They will appear in late spring and create swathes of white blooms that can also be used for cut flowers.

  • Height (cm): 40cm
  • Bulb Size (cm): 4+ cm
  • Blooms: April/ May
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Nectaroscordum Allium Bulbs
September Delivery
Nectaroscordum Allium Bulbs

Also known as Honey Lily or Siculum, this unusual flower has long hanging bell-shaped flowers, that is a creamy green with tinges of pink on the petals. The decorative seed heads will appear in late summer.

  • Height (cm): 60cm
  • Bulb Size (cm): 8 / 10cm
  • Blooms: May/June
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Purple Sensation Allium Bulbs
September Delivery
Purple Sensation Allium Bulbs

A firm gardeners favourite, these bulbs will produce a vivid purple flower head that is spherical in shape. Attracting pollinators, will not only give interest and height to planted borders but also a great source of food.

  • Height (cm): 90cm
  • Bulb Size (cm): 12/14cm
  • Blooms: May/June
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Schubertii Allium Bulbs
September Delivery
Schubertii Allium Bulbs

Schubertii alliums are a favourite in classic garden designs and often found in landscaped gardens. The striking violet flowers with hints of pink form natural focal points and add interest.

  • Height (cm): 75cm
  • Bulb Size (cm): 14cm+
  • Blooms: May/June
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BS Sphaerocephalon Allium Bulbs
September Delivery
Sphaerocephalon Allium Bulbs

Planted in groups, this allium produces distinctive egg-shaped flowers that bloom into a crisp purple. Once finished the flower heads can be dried and sprayed and create decorative displays in your home.

  • Height (cm): 60cm
  • Bulb Size (cm): 6+cm
  • Blooms: June
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September Delivery
Bulb Fibre

Specifically designed to help bulbs establish in pots, without the risk of the bulbs rotting, providing an open and free draining soil structure.

  • Ideal for planting with Narcissi, Crocus, Hyacinths and other spring-flowering bulbs
  • Universal bulb potting fibre
  • 500gm bag - This pack is sufficient for 3 x 1-litre pots
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September Delivery
Bulb Planter

Making bulb planting easier, quicker and cleaner, our bulb planter is the ideal tool for helping you plant your spring-flowering bulbs.

  • Made of high quality steel
  • Automatic release on handle
  • Duroplast coating - impact, elastic, abrasion, and corrosion - resistant
  • Depth Scale
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Bulb Fertiliser
September Delivery
Bulb Fertiliser

Our flowering bulb fertiliser has been specifically designed to help your spring-flowering bulbs flower to their full potential. Whether you are establishing in pots or containers, sprinkle a small amount into each hole prior to planting your bulbs. Also suitable for use in early spring to encourage your bulbs to flower well in the following season.

  • Tailored to give your bulbs all the nutrients they need
  • Can be mixed with compost or Bulb Fibre
  • NPK - 12.11.18 + MgO
  • Recommended coverage: 5kg per 200sqm. Apply at 25g/sqm
  • Not suitable for use with Wildflower Bulbs
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September Delivery
Bulb Planting Essentials Pack

Our bulb planting essentials pack has been put together for the ease of ensuring quick planting and a great display. The bulb planter will help you plant the bulbs with ease whilst the fibre will ensure the bulbs do not rot when planted into pots or containers. Using the bulb fertiliser will ensure your bulbs have all the nutrients they need whilst establishing.

  • 1 x Bulb Fibre
  • 1 x Bulb Planter
  • 1 x Bulb Fertiliser
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