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Allium schubertii
  • RHS Plants for pollinators

Schubert's allium

A. schubertii is a bulbous perennial producing bright-green, strap-shaped leaves in spring, which die back before the flowers appear. These consist of 50 or more star-shaped, pinky-purple florets on stems of differing lengths producing a starburst effect up to 30 cm across

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple Brown
Autumn Brown
Winter
Position
  • Full sun
Aspect

West–facing or South–facing or East–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Amaryllidaceae
Native to the UK
No
Foliage
Deciduous
Habit
Columnar upright
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

Correct

Plant range
SW Eurasia Libya

How to grow

Cultivation

Easy to grow in fertile, well-drained soil. Add grit when grown in clay soils to improve drainage. See allium cultivation for further advice

Propagation

Propagate by seed, sowing in containers in a cold frame when just ripe or in the spring. Alternatively, remove offsets in autumn

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Gravel garden
  • Cut flowers
  • Flower borders and beds
Pruning

No pruning required. The seedheads are attractive

Pests

Generally pest free

Diseases

Generally trouble-free: Onion white rot and a downy mildew may occur

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