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Allium 'Globemaster'
  • 911±¬ÁÏ AGM
  • 911±¬ÁÏ Plants for pollinators

allium 'Globemaster'

Large bulbous perennial with strap-shaped, grey-green basal leaves to 1m long, and globular clusters of starry violet-purple flowers to 20cm across, in summer, on stems to 80cm in height

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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, °Â±ð±ô±ô–d°ù²¹¾±²Ô±ð»å
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 ³§´Ç³Ü³Ù³ó–f²¹³¦¾±²Ô²µ

Exposure
Sheltered
Hardiness
H6
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

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
  • Cottage and informal garden
  • City and courtyard gardens
  • Coastal
  • Gravel garden
  • 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

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