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Herbaceous PerennialHerbs - Culinary

Allium porrum 'Stamford'

leek 'Stamford'

A hardy perennial usually grown as an annual vegetable, with thick, upright blue green leaves. Produces a good yield of uniform stems with easy to peel leaves. Performs well as a second early, ready to harvest from October depending on sowing time

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

East–facing or South–facing or °Â±ð²õ³Ù–f²¹³¦¾±²Ô²µ

Exposure
Exposed or Sheltered
Hardiness
H4
Botanical details
Family
Amaryllidaceae
Native to GB / Ireland
No
Foliage
Evergreen
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

Unresolved

How to grow

Cultivation

Grow in moist but well-drained soil that is rich in organic matter, preferably in full sun though they will tolerate partial shade. For longer blanched stems, draw up soil around the stems in late summer and early autumn. See leek cultivation for more detailed advice

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types
Pruning

No pruning required

Pests

May be susceptible to slugs and snails, leek moth, onion fly, and onion thrips

Diseases

May be susceptible to leek rust, onion white rot, downy mildews, foot and root rots, fungal leaf spots, and smuts

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