Designer allium collection

allium collection

Designer allium collection

allium collection

  • 1 × collection | 75 bulbs
  • £19.45 £0.26 each
  • Delivered during September
  • 2 + 1 FREE collections | 225 bulbs
  • £38.90 £0.17 each
  • Delivered during September
Delivery options
  • Bulbs (only) £4.99
  • Position: full sun
  • Soil: moderately fertile, moist, well-drained soil
  • Flowering period: May to July
  • Hardiness: fully hardy


This trio of ornamental alliums offers varied flower forms, colour, and texture across the seasons. Rounded clusters of pure white flowers create a soft, airy feel in early summer and are especially attractive to pollinators. Tall, slender stems topped with rich claret, drumstick-shaped blooms provide contrast and structure through midsummer, fading gently into late season. Shorter stems bearing papery, bell-shaped flowers in pinky-purple tones arrive in late spring, followed by long-lasting seedheads that add extra interest.

Together, these species bring dynamic movement, colour, and seasonal layering to sunny borders, gravel gardens, or container displays.


In each collection you will receive the following:

  • 25 × Allium neapolitanum Cowanii Group: Open clusters of pure white flowers appear in late spring or early summer, creating a soft, lacy effect. The flowers last for ages after being cut and the bees will find them very attractive, so try to plant them in large numbers. In smaller gardens, they look great in pots where they can sit on a sunny patio. Grows to 40cm.

  • 25 × Allium sphaerocephalon: The 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.

  • 25 × Allium unifolium: The flowers on this allium are quite papery, which means they last longer then many of the other varieties. In spring the first sign of growth is the appearance of the strappy foliage, which has usually died off by the time the flowers appear in late spring. The pinky purple bell-shaped flowers emerge in clusters of up to 20 at a time on top of single stems. After they have flowered the papery seed heads make a beautiful rattle as they blow in the breeze. The Royal Horticultural Society have also justifiably awarded it an Award of Garden Merit for its garden worthiness. Grows to 30cm.


  • Garden care:
    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.
    • Pets: TOXIC if eaten; Humans: Ornamental bulbs - not to be eaten

    Goes well with