• AGM plants

    AGM plants have been through a rigourous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Iris histrioides 'Major'

Iris 'Major'

Iris 'Major'

© � RHS 1984

  • Other common names Iris 'Major'

  • Genus 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

  • Family Iridaceae / Iridaceae

  • Species 'Major' is a bulbous perennial to 15cm in height, with linear, 4-angled leaves and large deep blue flowers, marked with yellow on the falls, in early spring

Characteristics

  • Foliage Deciduous

  • Habit Tufted

  • Toxicity Ingestion may cause severe discomfort

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or North-facing or West-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Chalk

  • Chalk

    Clay

  • Chalk

    Sand

  • Chalk

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAlkaline, Neutral

Size

  • Ultimate height

    0.1-0.5 metres

  • Ultimate spread

    0-0.1 metre

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Grow in well-drained neutral or slightly alkaline soil

Propagation Propagate by seed, sown in pots in a cold frame in autumn or spring. Lift and separate bulbs in early autumn

Suggested planting locations and garden types Flower borders and beds City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants Rock Garden

How to care

Pruning No pruning required

Pests Susceptible to damage by slugs and snails

Diseases Generally disease free

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