• 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

Miscanthus sinensis 'Goliath'

  • Family Poaceae

  • Genus Miscanthus can be deciduous or evergreen grasses with tufted or spreading habit, erect stems bearing arching, linear leaves and terminal panicles of silky spikelets in late summer or autumn

  • Details ‘Goliath’ is a vigorous, clump-forming perennial grass with broad leaves, up to 1.4m high, each with a prominent white stripe, and deep red flowers on stems up to 2.5m high, held well above the leaves, in late summer or early autumn, which remain attractive as fluffy brown seedheads in winter

Characteristics

  • Foliage Deciduous

  • Habit Tufted

  • 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)

    H6

Colour

Sunlight

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Loam

    Loam

  • Clay

    Clay

  • Chalk

    Chalk

  • Sand

    Sand

  • MoistureMoist but well-drained

  • SoilLoam, Clay, Chalk, Sand

  • pHNeutral, Acid, Alkaline

Size

  • Ultimate height 1.5-2.5 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Will tolerate most conditions, but grows best in moderately fertile, moist but well-drained soil in full sun

Propagation Propagate by division in spring or early summer, before re-growth starts

Suggested planting locations and garden types Flower borders and beds Banks and Slopes Cut Flowers Prairie Planting Coastal Cottage & Informal Garden City & Courtyard Gardens

How to care

Pruning Cut down dead leaves and old flowered stems to just above ground level in late winter or early spring; cut stems can be left around the plants as a mulch

Pests Generally pest-free

Diseases Generally disease-free

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