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Iris laevigata 'Variegata' (v) AGM

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© RHS

Characteristics

Plant type

Herbaceous Perennial

Habit

Bushy

Toxicity

Ingestion may cause severe discomfort

Resilience

Hardiness

H7 (very hardy)

Colour

Flower

Blue in Summer

Foliage

Green, White and Variegated in Spring and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

variegated Japanese iris

Family

Iridaceae


Iris may be rhizomatous or bulbous perennials, with narrowly 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

'Variegata' is a rhizomatous perennial to 70cm tall, with narrow leaves heavily striped with creamy-white. Flowers to 10cm wide, purple-blue

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing or West-facing
  • Sheltered or Exposed

Cultivation

Grow in moist to wet, deep, humus-rich, acid soil; thrives at the margins of ponds or streams. Tolerates some lime

Soil

  • Poorly-drained
  • Acid or Neutral
  • Clay or Loam

Propagation

Propagate by division from midsummer to early autumn, plant immediately in flowering positions

Suggested planting locations and garden types

City/Courtyard Gardens, Coastal, Cottage/Informal Garden or Flower borders and beds


How to care

Pruning

Cut back after flowering

Pests

Slugs and snails may be a problem, sawflies can damage the leaves

Diseases

May be affected by aphid borne virus diseases, iris rhizome rot and grey moulds