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Herbaceous PerennialHerbs - Culinary

Allium porrum 'Krypton'PBR
  • RHS AGM

leek 'Krypton'

A hardy perennial grown as an annual vegetable. Easy to grow compact, upright leek with a mild flavour, often grown as baby leeks in a late Summer harvest or can be left to mature in Winter. Shows excellent disease resistance

Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Sand
Loam
Clay
Chalk
Moisture
Well–drained
pH
Neutral, Alkaline
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green
Autumn Green
Winter Green
Position
  • Full sun
Aspect

West–facing or South–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Amaryllidaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem

Name status

Accepted

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How to grow

Cultivation

Grow in fertile, moist but well drained soil, in full sun. Start in modules indoors and transplant later or sow seed in March and April and transplant to their final position in ealry summer. See leek cultivation

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types
Pruning

No pruning required

Pests

May be susceptible to leek moth and birds. Protect with fleece or netting to prevent moths laying eggs

Diseases

May be susceptible to onion white rot and leek rust

Get involved

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