Allium 'Purple Sensation'

Delivery August/September
Available for delivery in August/September, when the autumn planting season begins.

10 bulbs
£6.69
£0.67 each
30 bulbs
£17.79
£0.59 each
Save 11%
60 bulbs
£30.19
£0.50 each
Save 25%

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Purple Sensation, often admired for its purple colouring, is a bulb variety especially well suited to borders.

Allium hollandicum ‘Purple Sensation’ is an enduring favourite for a reason: statuesque stems topped with richly coloured, globe-shaped flower heads that bring poise and rhythm to late spring and early-summer borders. The grey-green basal foliage forms early, then quietly recedes as the blooms take centre stage—ideal for weaving through perennials and ornamental grasses.

Equally at home in generous pots, this fully hardy allium is particularly useful where soils are heavy; simply ensure excellent drainage and enjoy a refined, architectural display that also suits the vase.

  • Colour & form: deep purple, globe-shaped flower heads
  • Best for: borders, containers and cutting
  • Wildlife: pollinator friendly; noted for deer resistance
  • Season: plant in autumn for flowers in May–June
Botanical name Allium hollandicum 'Purple Sensation'
Flower colour Purple
Bulb size 12/14 cm
Established height 50–100cm
Established spread 10–50cm
Plant spacing 15–20cm
Leaf colour Grey-Green
Habit Clump-forming, upright
Life cycle Perennial
Hardiness Fully Hardy
Years to establish 2
Sunlight Full-Sun
Position Sheltered
Suitable for Borders, Containers, Cut Flowers
Soil acidity Any
Soil moisture Well-drained
Soil type Clay
RHS Award (AGM) No
Growing skill Easy
Pollinator-friendly Yes
Deer resistant Yes

Where to Plant:

Allium 'Purple Sensation' needs full-sun and a warm, sheltered position for the best flowering. Plant into fertile, humus-rich soil that drains well, and choose a spot protected from strong winds, especially for taller varieties.

How to Plant:

Plant bulb from September to December once conditions are suitable. Set them at the correct depth for the variety, spacing 15–20cm apart where relevant, then firm in gently and water well after planting.

Aftercare:

Water regularly in dry weather and feed every two to three weeks once buds appear. Stake taller stems early and deadhead to keep plants flowering. After flowering, allow foliage to die back naturally before lifting or protecting bulb according to local conditions.

Planting and Flowering Calendar

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Planting
Flowering

Key Features

Packed in paper

Packed peat-free

Great for Shade

Attracts wildlife

Good for cutting

Naturalising

Allium 'Purple Sensation' - Harding & Bloom

Allium 'Purple Sensation'

£6.69

£6.69

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Kind Words from Our Gardeners

Arrived quickly and well-packaged. Planted them in some pots on the patio and they all came up. Look beautiful. Thank you!

Careane Wallace

Oxfordshire, UK

The bulbs arrived beautifully packaged and you could just tell they were excellent quality. We had the most wonderful display of daffodils this spring on our patio. Simply stunning. Will definitely be ordering again

David P

Kent, UK

I ordered the mixed hyacinth collection and the scent in my garden this April was absolutely heavenly. Every single bulb produced a strong, beautiful flower and the colours were stunning together. A fantastic purchase, I'll be back for more next year!

Eleanor R

Somerset