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Allium 'Globus'
  • RHS Plants for pollinators

allium 'Globus'

A bulbous perennial to about 60cm with broad, greyish-green, strap-shaped leaves, dying back as the flowers open in early summer. The spherical flower heads, up to 15cm across, are densely packed with soft pink-purple, star-shaped blooms

Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Purple Green Grey Silver
Autumn
Winter
Position
  • Full sun
Aspect

West–facing or South–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Amaryllidaceae
Native to GB / Ireland
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

How to grow

Cultivation

Grow in fertile, well-drained soil. Add grit to clay soils to improve drainage. See allium cultivation

Propagation

Propagate by removing offsets in autumn

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

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free but may be susceptible to onion white rot and downy mildews

Get involved

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