Allium ameloprasum var. porrum 'Winter Atlanta' (Leek 'Winter Atlanta')

Botanical name

Allium ameloprasum var. porrum 'Winter Atlanta'

Other names

Leek 'Winter Atlanta'

Genus

Allium Allium

Variety or Cultivar

'Winter Atlanta' _ 'Winter Atlanta' is a vegetable with a long, thick, cylindrical, white stalk and many flat, dull dark green leaves in autumn. Shows good winter hardiness and resistance to rust.

Foliage

Deciduous

Habit

Clump-forming, Upright

Awards

RHS AGM (Award of Garden Merit)

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Colour

Flower

Greenish-white in Summer

Foliage

Dark-green in Autumn

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How to care

Watch out for

Specific pests

Eelworm (stem and bulb) , Leek moth , Onion fly

Specific diseases

Bolting , Bull neck , Downy mildew , Neck rot , Saddleback , Shanking , Smut , White rot , White tip

General care

Propagation methods

Seed, Sets

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Monthly care advice

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Where to grow

Allium ameloprasum var. porrum 'Winter Atlanta' (Leek 'Winter Atlanta') will reach a height of 0.5m and a spread of 0.5m after 1-2 years.

Suggested uses

Add to salads, Beds and borders, Flavouring food and drinks

Cultivation

Plant in fertile, aerated and well-drained soil in full sun. Add compost or well-rotted manure while digging over in winter if the plot was not manured for the previous crop. Add general fertilizer 1 week before planting into well raked soil.

Soil type

Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

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

Tender in frost (H3)

Defra's Risk register #1

Plant name

Allium ameloprasum var. porrum 'Winter Atlanta' (Leek 'Winter Atlanta')

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 ameloprasum var. porrum 'Winter Atlanta' (Leek 'Winter Atlanta')

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 ameloprasum var. porrum 'Winter Atlanta' (Leek 'Winter Atlanta')

Common pest name

African cottom leafworm; Cotton leafworm; Egyptian cotton leafworm; Egyptian cotton worm; Mediterranean climbing cutworm; Meditteranea Brocade; Tobacco cutworm

Scientific pest name

Spodoptera littoralis

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

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

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