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Stunning Allium Collection
Stunning Allium Collection

Stunning Allium Collection

£17.75

These striking alliums can be planted amongst perennials to add an extra layer of flowers, where they appear to 'float' above...

1 × collection | 45 bulbs
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£17.75
Delivered in September onwards
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Plant description

These striking alliums can be planted amongst perennials to add an extra layer of flowers, where they appear to 'float' above shorter perennials. Both Allium hollandicum 'Purple Sensation' and Allium nigrum are all-time Chelsea Flower Show favourites, appearing repeatedly through the years in many of the award-winning gardens.

Position

Position

Full sun

Flowering period

Flowering period

June

Soil type

Soil type

All soil types

Hardiness

Hardiness

Fully hardy

Specifications

Delivery Option
Standard delivery
Location
Outdoor
Sunlight
Full sun
Soil type
All soil types
Rate of growth
Average
Hardiness
Fully hardy
Flowering Period
June
Flower colour
Colourful collections / bicolours
Toxicity
Pets: TOXIC if eaten; Humans: Ornamental bulbs - not to be eaten
Product Code
BU30001747

Care guide

Allium bulbs are easy to grow in a sunny spot with freely drained soil, or a good quality potting compost. Ideally they should be planted in September or October, but could also be planted in early November in milder regions.

While keeping the size of the flowerhead in mind and avoiding overcrowding, dig holes roughly three times as deep as the diameter of the bulb and place them at the base, pointy side up before gently infilling and watering to settle them in.

In early spring, as growth begins, apply a balanced, slow-release fertiliser, and allow the plants to die back naturally and completely before tidying away.

Features

  • In each collection you will receive the following:
  • 10 × Allium nigrum: The naming of this plant refers to black, but the flower is in fact white. The wide grey-green leaves of this ornamental onion generally have started to die back when the flowers emerge in early summer (June). These sit on tall, sturdy stems forming flattish clusters that create a striking silhouette. Each creamy-white flower has a pronounced ovary at its heart, which looks a little like a dark green pearl nestled in the centre. Plant bulbs about 10cm deep and 25cm apart in September-October. Grows to 1m.
  • 10 × Allium hollandicum 'Purple Sensation': Strap-shaped grey-green leaves start to die back before the densely packed umbels of deep violet, star-shaped flowers appear in early summer. Its striking globe-like architectural silhouette makes it particularly well suited to gravel or prairie-style planting schemes. These alliums are renowned for their large flower heads, which are just as attractive after they have finished flowering as seed heads. Plant bulbs about 15cm deep and 15cm apart to enjoy the full effect of the flowers. Winner of the prestigious Royal Horticultural Society AGM. Also plant in September-October. Grows to 1m.
  • 25 × Allium sphaerocephalon: Small, egg-shaped, claret-coloured flowerheads appear like drumsticks on tall, slender stems above strap-like, mid-green leaves in mid to late summer. Planted en masse in a border in full sun, these diminutive claret flowers look great emerging from a screen of foliage, or against a backdrop of ornamental grasses. They gently fade as summer comes to a close. Grows to 90cm.

Warning

Pets: TOXIC if eaten; Humans: Ornamental bulbs - not to be eaten

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