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Colchicum × agrippinum
  • RHS AGM
  • RHS Plants for pollinators

autumn crocus

A perennial with upright, bright pink, slightly mottled, crocus-shaped flowers 5cm in length in early autumn, followed by strap-shaped, wavy leaves in spring

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Size
Ultimate height
Up to 10cm
Time to ultimate height
2–5 years
Ultimate spread
0–0.1 metre
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer
Autumn Pink
Winter
Position
  • Full sun
Aspect

North–facing or West–facing or South–facing or East–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Colchicaceae
Native to the UK
No
Foliage
Deciduous
Habit
Columnar upright
Potentially harmful
All parts are highly toxic by ingestion. Wear gloves and wash hands after handling
Genus

Colchicum are cormous perennials with usually coarse, broadly strap-shaped leaves which appear with or after the goblet-shaped flowers

Name status

Correct

Plant range
Greece SW Turkey

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How to grow

Cultivation

Grow in moist but well-drained, deep, humus-rich, fertile soil. Intolerant of waterlogging

Propagation

Propagate by seed, sowing in containers in an open frame when ripe or separate corms when dormant in summer

Suggested planting locations and garden types
  • Cottage and informal garden
  • Patio and container plants
  • Rock garden
  • Underplanting of roses and shrubs
Pruning

No pruning required

Pests

May be damaged by slugs

Diseases

Generally disease free

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