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Allium Purple Sensation (Allium hollandicum) in grasses Image 1Allium Purple Sensation (Allium hollandicum) in grasses Image 1Allium Purple Sensation (Allium hollandicum) in border Image 5Allium Purple Sensation (Allium hollandicum) bulbs Image 6Allium Purple Sensation (Allium hollandicum) with Hosta Image 2Allium Purple Sensation (Allium hollandicum) with bee detail Image 3Allium Purple Sensation (Allium hollandicum) opening Image 4

'Purple Sensation' Allium Bulbs

Allium hollandicum 'Purple Sensation'Feefo logo

The details

  • Colour: Rich Purple
  • Height: 80-100 cms
  • Scent: Faint
  • Flowering: May/June
  • Bulb Size: 10/12 cms
  • Planting Depth: 4 times the height of the bulb
  • Planting Months: September - December
  • RHS Award of Garden Merit
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£ 9.96

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Allium hollandicum 'Purple Sensation' Dutch Garlic Bulbs

Purple Sensation is one of the deepest coloured alliums available, with vivid purple blooms in late spring to early summer.

The Purple Sensation ornamental onion (aka Dutch Garlic) is a popular choice, with its show-stopping display of deep violet flowers.

Standing on tall leafless stems up to 1m, the blooms appear to float above other plants, adding tall bursts of interest.

These flowerheads are umbels (short flower stalks emanating from one point) forming 3-inch-wide globes of up to 50 small, rich purple star/bell-shaped flowers.
They do have a faint onion scent: this is only apparent when you smell one up close, it doesn't spread

Once flowered, it is excellent in the vase or for dried bouquets at Christmas.

Browse our range of Allium varieties, or all our garden flower bulbs.


  • Colour: Rich Purple
  • Height: 80-100cm
  • Scent: Faint
  • Flowering: May/June
  • Bulb Size: 10/12cm
  • Planting Months: September - December
  • RHS Plants for Pollinators
  • RHS Award of Garden Merit

Growing 'Purple Sensation' Alliums

  • Plant in autumn, in full sun
  • Plant bulbs 5-10cm (4 inches) deep, 10-15cm apart
  • A total spread of 10-50cm when fully grown
  • Likes fertile well-drained soil. Add grit to heavier soils such as clay to increase drainage
  • Remove immature seeds as the plants they produce tend to produce paler blooms

In your Garden Design

It's ideal for adding drama to sunny borders or even pots, but equally at home in cottage gardens and flower beds.

Did You Know?

It is a relatively new breed from 1963, produced by Allium maestro, Jan Bijl in Holland.
Mr Bijl was under the impression that his creation was a hybrid of Allium hollandicum & A. aflatunense, but genetic analysis in the 1990s showed only the former parentage.

Cultivation Instructions


  • Full sun
  • Shelter from strong wind
  • Any well-drained soil
  • Ideal for containers
  • Spacing: 10-15cm
  • Planting Depth: 20-25cm