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A picture of a Allium 'Purple Sensation'

Allium 'Purple Sensation'

Allium hollandicum 'Purple Sensation'

Also known as

Dutch Garlic 'Purple Sensation'

Allium 'Purple Sensation' by Dmitriy Konstantinov (CC BY-SA 3.0)

Full Sun
Easy care
Light watering
Frost Hardy

H6

RHS hardiness

-20°C

Minimum temperature

Expected size

Height
Spread

1m

Max

50cm

50cm

Min

20cm

5 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has no fragrance

More images of Allium 'Purple Sensation'

A photo of Allium 'Purple Sensation'
Allium Purple Sensation plant

Allium 'Purple Sensation' Overview

Allium hollandicum 'Purple Sensation' is one of the most popular Alliums. Its upright, striking, bright-purple round head, is made up of small, densely packed, star-shaped flowers that can grow to 90cm high. This easy to grow bulb needs to be planted in autumn in soil that doesn't get too wet. Allium 'Purple Sensation's' strappy leaves will start dying back before its flower head has fully opened - in early summer - making it ideal for planting in amongst grasses or later growing perennials to give a prairie-style feel. The spent flowerheads will remain for a long time, giving some winter interest or they can be cut for floral arrangements. Allium 'Purple Sensation' is part of the Royal Horticultural Society “Plants for Pollinators” initiative to showcase plants that support pollinator populations by providing ample nectar and/or pollen. A great choice for encouraging pollinating insect wildlife into your garden! It has also earned an RHS Award of Garden Merit.

Common problems with Allium 'Purple Sensation'

How to harvest Allium 'Purple Sensation'

Flowers can be cut for floral arrangements as needed.

How to propagate Allium 'Purple Sensation'

Bulbs

Plant bulbs - or offsets from them - in autumn, up to three times their diameter. Prefers fertile, well-drained soil in full sun. If you have clay soils, add grit to improve drainage.

Seed

A consideration is Allium grown from seeds may take several years to reach maximum size. Sow in containers in a cold frame when just ripe or in the spring.

Special features of Allium 'Purple Sensation'

Attractive flowers

Bright purple star-shaped, flowers in an umbel on a leafless, slender stem.

Attracts useful insects

Pot plant

Suits being grown in raised beds or larger containers to balance the height of the flowering stem.

Repels harmful insects

Their mild onion scent can repel harmful insects from other plants

Attracts bees

Attracts butterflies

Other uses of Allium 'Purple Sensation'

'Purple Sensation' is perfect for growing in drifts in a prairie style garden or large clumps in a sunny border. Alternatively in a large container, and makes an impressive cut flower. It suits both formal and informal planting schemes.