• AGM plants

    AGM plants have been through a rigorous 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

Semiarundinaria fastuosa

Narihira bamboo

AGM plants

AGM plants have been through a rigorous 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
Narihira bamboo

© RHS 2002

  • Other common names Narihira bamboo

  • Synonyms Arundinaria fastuosa
    Arundinaria narihira

  • Family Poaceae

  • Genus Semiarundinaria are vigorous clump-forming bamboos with erect canes bearing narrowly lance-shaped leaves

  • Details S. fastuosa is a large and vigorous, erect evergreen bamboo forming dense clumps of glossy dark green canes, red-flushed purple in a sunny position. Tufts of short, densely leafy shoots. Leaves oblong, to 20cm, rich dark green above, glaucous beneath

  • Plant range Japan

Characteristics

  • Foliage Evergreen

  • Habit Clump-forming

  • Hardiness

    Hardiness ratings

    All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

    • H1a - Under glass all year (>15C)
    • H1b - Can be grown outside in the summer (10 - 15)
    • H1c - Can be grown outside in the summer (5 - 10)
    • H2 - Tolerant of low temperatures, but not surviving being frozen (1 to 5)
    • H3 - Hardy in coastal and relatively mild parts of the UK (-5 to 1)
    • H4 - Hardy through most of the UK (-10 to -5)
    • H5 - Hardy in most places throughout the UK even in severe winters (-15 to -10)
    • H6 - Hardy in all of UK and northern Europe (-20 to -15)
    • H7 - Hardy in the severest European continental climates (< -20)

    H4

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Loam

  • MoistureMoist but well-drained

  • SoilLoam

  • pHAcid, Neutral, Alkaline

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 1.5-2.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grow in moderately fertile, humus-rich, moist but well-drained soil, in full sun or light dappled shade. May remain clump-forming in colder areas, poor or dry soils but can become invasive in warm, moist or favourable conditions and need restraining ; see bamboo control and bamboo cultivation

Propagation Propagate by young rhizome cuttings and the division of established plants in Spring

Suggested planting locations and garden types Hedging & Screens Architectural

How to care

Pruning Remove weak, dead, damaged or spindly stems in spring and thin to show off stems to best effect. Cut out any flowering shoots promptly to discourage more from forming - see bamboo cultivation

Pests Slugs may damage new shoots

Diseases Generally disease free

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