Create Your Garden

Allium hollandicum ‘Purple Sensation’ (Ornamental Onion)

Allium Aflatunense 'Purple Sensation', Allium 'Purple Sensation', Flowering Onion, Ornamental Onion, Allium hollandicum, Spring Bulbs, Spring Flowers

Allium Hollandicum 'Purple Sensation' , Allium 'Purple Sensation', Allium Aflatunense 'Purple Sensation', Flowering Onion, Ornamental Onion, Allium Hollandicum, Spring Bulbs, Spring Flowers
Allium Hollandicum 'Purple Sensation' , Allium 'Purple Sensation', Allium Aflatunense 'Purple Sensation', Flowering Onion, Ornamental Onion, Allium Hollandicum, Spring Bulbs, Spring Flowers
Allium Hollandicum 'Purple Sensation' , Allium 'Purple Sensation', Allium Aflatunense 'Purple Sensation', Flowering Onion, Ornamental Onion, Allium Hollandicum, Spring Bulbs, Spring Flowers

A favorite of many gardeners, multiple award-winner Allium hollandicum ‘Purple Sensation’ is a striking ornamental onion with perfectly round flowerheads, 3 in. wide (8 cm), packed with dozens of small, star-shaped, rich violet-lilac flowers. They are borne atop sturdy stalks, which arise from a group of 6 to 8 handsome, blue-green leaves. Blooming in late spring to early summer, this spectacular Allium enjoys long-lasting blooms and makes outstanding cut flowers that will last for 2 weeks.

  • Awarded the prestigious Award of Garden Merit by the Royal Horticultural Society
  • Growing up to 28 – 36 inches tall (70 – 90 cm), this beauty naturalizes easily and will come back year after year!
  • Easily grown in rich, sandy to gritty, dry to medium moisture, well-drained soils in full sun. This Allium is drought tolerant.
  • Known for attracting bees, butterflies, ​moths, and other pollinators, but deer ignore it.
  • Stunning in beds, borders, and cottage gardens. Spectacular in large sweeping drifts. Plant in groups (at least 10 to 15 bulbs) for the best visual impact. Excellent as cut flowers for both fresh and dried arrangements!
  • Mixes beautifully with other late spring flowering bulbs and creates stunning combinations with pink or white delphiniums, peonies, or irises.
  • To be planted in fall.
  • Propagate by seed, sowing in containers in a cold frame when just ripe or in the spring. Alternatively, remove offsets in autumn.

Hundreds of Allium species exist, but only a few have made a name for themselves as garden plants. The ornamental onions distinguish themselves by their remarkable diversity in color, inflorescence, and flowering height. Many species bloom in early summer – just after the spring-flowering period and just before the exuberant full bloom of summer. Certain small species are just perfect for a rock garden, and several lend themselves to naturalizing. All species can be used in the border.

Learn How To Plant And Care for Your Spring Flower Bulbs

 To achieve optimum flowering results, it is important to plant the bulbs at the right time.


Read More

Requirements

Hardiness 4 - 9
Heat Zones 1 - 9
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Bulbs
Plant Family Amaryllidaceae
Genus Allium
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early)
Height 2' - 3'
(60cm - 90cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 8" (20cm)
Depth 8" (20cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Plant of Merit, Showy
Tolerance Drought, Deer, Rabbit
Attracts Bees, Butterflies
Garden Uses Beds And Borders
Garden Styles Formal Garden, Informal and Cottage
How Many Plants
Do I Need?
Learn Now
Explore Great Plant Combination Ideas
Allium
Guides with
Allium
Not sure which Allium to pick?
Compare Now

Alternative Plants to Consider

Shallots, Shallot, French Red Shallot, Allium ascalonicum, Dutch shallot, Persian shallot
Allium cepa, Onion, Onions, Shallot, Shallots, Tree Onion
Allium sativum, Garlic, Churl's Treacle, Clown's Treacle, Common Garlic, Poor Man's Treacle
Allium Purple Rain, Ornamental Onion 'Purple Rain', Tall Allium, Jiant Allium, Ornamental Garlic 'Purple Rain', Spring Bulbs, Spring Flowers, Purple flowers, Late Spring flowers
Allium 'Pinball Wizard', Ornamental Onion 'Pinball Wizard', Tall Allium, Spring Bulbs, Spring Flowers, Giant Onions, Purple flowers
Allium 'Ostara', Ostara Allium, Ornamental Allium, Purple flowers, Summer Purple Flowers

Recommended Companion Plants

Euphorbia Palustris, Marsh Spurge, Swamp Spurge, Marsh Euphorbia, Yellow flowers, Drought tolerant perennial, Deer resistant perennial, rabbit resistant perennial
Aquilegia Vulgaris 'Blue Barlow', Columbine 'Blue Barlow', Granny's Bonnet 'Blue Barlow', Clematis-Flowered Columbine 'Blue Barlow', Clematis-Flowered Granny's Bonnet 'Blue Barlow', Purple Columbine
Allium Giganteum, Ornamental Onion, Ornamental Garlic, Giant Onion, Giant Allium, Spring Bulbs, Spring Flowers, Purple flowers
Geranium 'Patricia', Hardy Geranium Patricia, Cranesbill 'Patricia', Geranium Oxanianum x Psilostemon 'Patricia' , Geranium Endressii x Psilostemon 'Patricia', Best geraniums, Best groundcovers, purple geranium, violet geranium
Rose 'Princess Alexandra of Kent' , Rosa 'Princess Alexandra of Kent', English Rose 'Princess Alexandra of Kent', David Austin Rose, English Roses, Shrub roses, pink roses, Container roses
Rose Scepter'd Isle, Rosa 'Scepter'd Isle', English Rose 'Scepter'd Isle', David Austin Roses, English Roses, Shrub roses, pink roses, Rose Bushes, Garden Roses, Climbing Roses, fragrant roses
Lychnis Coronaria, Rose Campion, Rabbit's Ears, Crown Pink, Mullein Pink, Dry soil plant, deer resistant plant, AGM plant
Lupinus 'The Governor', Lupine 'The Governor', Lupin 'The Governor', Band of Noble Series, Russel Hybrids, Bicolor flowers, Blue flowers
Tulipa Queen of Night, Tulip 'Queen Of Night', Single Late Tulip 'Queen Of Night', Single Late Tulips, Spring Bulbs, Spring Flowers, Tulipe Queen of Night, AGM Tulips, Black tulips, bulb combination

Find In One of Our Guides or Gardens

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
Buy Plants

Requirements

Hardiness 4 - 9
Heat Zones 1 - 9
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Bulbs
Plant Family Amaryllidaceae
Genus Allium
Exposure Full Sun
Season of Interest Spring (Late)
Summer (Early)
Height 2' - 3'
(60cm - 90cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 8" (20cm)
Depth 8" (20cm)
Maintenance Low
Water Needs Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Fragrant, Plant of Merit, Showy
Tolerance Drought, Deer, Rabbit
Attracts Bees, Butterflies
Garden Uses Beds And Borders
Garden Styles Formal Garden, Informal and Cottage
How Many Plants
Do I Need?
Learn Now
Explore Great Plant Combination Ideas
Allium
Guides with
Allium
Not sure which Allium to pick?
Compare Now

Gardening Ideas

Plant Calculator

How many Allium hollandicum ‘Purple Sensation’ (Ornamental Onion) do I need for my garden?

Input your garden space dimensions

Your Shopping List

Plant Quantity
Allium hollandicum ‘Purple Sensation’ (Ornamental Onion) N/A Buy Plants

Please Login to Proceed

You Have Reached The Free Limit, Please Subscribe to Proceed

Subscribe to Gardenia

To create additional collections, you must be a paid member of Gardenia
  • Add as many plants as you wish
  • Create and save up to 25 garden collections
Become a Member

Plant Added Successfully

You have Reached Your Limit

To add more plants, you must be a paid member of our site Become a Member

Update Your Credit
Card Information

Cancel

Create a New Collection

Sign Up to Our Newsletter

    You have been subscribed successfully

    Join Gardenia.net

    Create a membership account to save your garden designs and to view them on any device.

    Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

    Join now and start creating your dream garden!

    Join Gardenia.net

    Create a membership account to save your garden designs and to view them on any device.

    Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

    Join now and start creating your dream garden!

    Find your Hardiness Zone

    Find your Heat Zone

    Find your Climate Zone