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Allium hollandicum 'Purple Sensation' (Dutch garlic 'Purple Sensation')

Beginner
skill rating
2 hours care
per year
0.9m
Max height
0.5m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Allium hollandicum 'Purple Sensation'

Other names

Allium aflatunense 'Purple Sensation', Dutch garlic 'Purple Sensation', 'Purple Sensation', Allium 'Purple Sensation'

Genus

Allium Allium

Variety or Cultivar

'Purple Sensation' _ 'Purple Sensation' is a clump-forming, deciduous, bulbous perennial with strap-shaped, mid- to grey-green leaves and, in summer, erect stems bearing spherical umbels of reddish-purple flowers blooming after the leaves died down.


Allium hollandicum 'Purple Sensation' is: Deciduous

Fragrance

Foliage has a nice fragrence

Habit

Clump-forming, Erect flower stem

Awards

RHS AGM (Award of Garden Merit)

Flower

Reddish-purple in Summer

Foliage

Green in Spring

How to care

Watch out for

Pests

Pest free, may suffer from slugs on new growth.

Onion rot , Downy mildew Onion rot , Downy mildew

General care

Pruning

No pruning required. Leaves can be removed after they have completely died back.

Propagation methods

Division, Seed


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Where to grow

Allium hollandicum 'Purple Sensation' (Dutch garlic 'Purple Sensation') will reach a height of 0.9m and a spread of 0.5m after 2-5 years.

Suggested uses

Architectural, Cottage/Informal, Flower Arranging, Beds and borders, Gravel

Cultivation

Grow in fertile, well-drained soil in sun. Add grit to clay soil to improve drainage.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

North, South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

Botanical name

Allium hollandicum 'Purple Sensation'

Other names

Allium aflatunense 'Purple Sensation', Dutch garlic 'Purple Sensation', 'Purple Sensation', Allium 'Purple Sensation'

Genus

Allium Allium

Variety or Cultivar

'Purple Sensation' _ 'Purple Sensation' is a clump-forming, deciduous, bulbous perennial with strap-shaped, mid- to grey-green leaves and, in summer, erect stems bearing spherical umbels of reddish-purple flowers blooming after the leaves died down.

Native to

Garden origin

Foliage

Deciduous

Fragrance

Foliage has a nice fragrence

Habit

Clump-forming, Erect flower stem

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Reddish-purple in Summer

Foliage

Green in Spring


How to care

Watch out for

Pests

Pest free, may suffer from slugs on new growth.

Specific diseases

Onion rot , Downy mildew

General care

Pruning

No pruning required. Leaves can be removed after they have completely died back.

Propagation methods

Division, Seed


Monthly care advice


Where to grow

Allium hollandicum 'Purple Sensation' (Dutch garlic 'Purple Sensation') will reach a height of 0.9m and a spread of 0.5m after 2-5 years.

Suggested uses

Architectural, Cottage/Informal, Flower Arranging, Beds and borders, Gravel

Cultivation

Grow in fertile, well-drained soil in sun. Add grit to clay soil to improve drainage.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

North, South, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6, Zone 5, Zone 4

Defra's Risk register #1

Plant name

Allium hollandicum 'Purple Sensation' (Dutch garlic 'Purple Sensation')

Common pest name

Asain cotton leafworm; Cluster caterpillar; Fall armyworm; Rice cutworm; Taro caterpiller; Tobacco budworm; Tobacco caterpillar; Tobacco cutworm; Tobacco leaf caterpillar

Scientific pest name

Spodoptera litura

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Regulated pest; frequently intercepted with occasional outbreaks which have been successfully eradicated in the UK.

Defra's Risk register #2

Plant name

Allium hollandicum 'Purple Sensation' (Dutch garlic 'Purple Sensation')

Common pest name

allium leaf miner

Scientific pest name

Phytomyza gymnostoma

Type

Insect

Current status in UK

Present (Limited)

Likelihood to spread in UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Pest of Allium already present in UK and spreading; previous consultation supported awareness raising only; industry should prepare for the event of findings in commercial crops.

Defra's Risk register #3

Plant name

Allium hollandicum 'Purple Sensation' (Dutch garlic 'Purple Sensation')

Common pest name

Sugarbeet webworm; Weevil; Australian tomato; Weevil; vegetable

Scientific pest name

Listroderes costirostris

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Awareness needs to be maintained due to the risk of entry as a 'hitchhiker' and monitoring of the pest in countries where it is known to be present.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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Allium 'Purple Sensation' with epimedium and black elder in background

June 2016

Alliums in sunny bed June 2016

A North London garden

April 2011, so still in pots for their first outing (24/06/2011)

(02/06/2010)

(08/06/2010)

(08/06/2010)

(10/05/2011)

(06/06/2011)

Allium 'Purple Sensation'

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

DISCUSS THIS PLANT

Allium purple sensation

Hi,I planted 5 allium bulbs outside in a pot last October and they came up fine about 6 weeks ago. Now the flowers have all dried up and two of the 'globes' of flowers have what look like bulbs… read more

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