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BogsHerbaceous Perennial

Iris chrysographes
  • RHS AGM

gold-marked iris

I. chrysographes is an herbaceous perennial to 50cm, with narrow, grey-green leaves and slightly fragrant deep red-purple flowers 5-10cm in width in early summer, marked with gold on the falls

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Moisture
Moist but well–drained, Poorly–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple Red Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H6
Botanical details
Family
Iridaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
All parts may cause severe discomfort if ingested, contact with the sap may irritate skin. 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

Correct

Plant range
Tibet to NE Myanmar

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How to grow

Cultivation

Grow in well-drained, neutral to slightly acid loam in full sun or partial shade. Mulch in spring

Propagation

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

Suggested planting locations and garden types
  • Cottage and informal garden
  • Flower borders and beds
Pruning

Remove any dying foliage in autumn, old flower stems can be cut down after flowering. Tall varieties can have their leaf fans trimmed to one third of the total height to reduce wind rock while the plants are establishing

Pests

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

Diseases

May be affected by aphid borne virus diseases, bacterial soft rot and grey moulds

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