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Herbaceous Perennial

Iris 'Flight of Butterflies' (Sib)
  • RHS AGM

Siberian iris 'Flight of Butterflies'

'Flight of Butterflies' is a very free-flowering perennial with bluish-green grassy foliage. In early summer stems to 90cm high carry narrow flowers, bright violet-blue with drooping falls, heavily veined over white

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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
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Blue Purple White Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Iridaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Ingestion may cause severe discomfort. Skin irritant. Wear gloves and other protective equipment when handling
Genus

Iris may be rhizomatous or bulbous perennials, with narrow leaves and erect stems bearing flowers with 3 large spreading or pendent fall petals, alternating with 3 erect, often smaller, standard petals, in late winter, spring or early summer

Name status

Accepted

Horticultural Group
Sibirica irises are rhizomatous perennials, to 1.2m tall, with narrow leaves and erect stems bearing up to 5 beardless flowers 6-7cm wide in early summer. Form and colour vary considerably among cultivars

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How to grow

Cultivation

Grow in any good garden soil that is preferably moist but not waterlogged in sun or part shade. In drier soils, dig in well-rotted organic matter before planting then apply as a mulch each spring

Propagation

Propagate by dividing irises from midsummer to early autumn

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

Remove any dying foliage in autumn, old flower stems can be cut down after flowering

Pests

May be attacked by slugs, snails and thrips

Diseases

May be affected by Iris diseases (may be affected by grey moulds)

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