• 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

Alocasia × amazonica

Amazonian elephant's ear

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
Amazonian elephant's ear

© � RHS 1999

  • Other common names Amazonian elephant's ear
    African mask

  • Genus Alocasia are robust evergreen rhizomatous or tuberous perennials with large, usually peltate, leaves with conspicuous veins; insignificant flowering spathes may be followed by orange-red fruits

  • Family Araceae / Araceae

  • Species A. x amazonica is a robust evergreen rhizomatous perennial to 1.5m tall, with narrowly arrow-shaped, wavy-edged leaves to 60cm long, dark green with silver veins above, purple beneath

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • Toxicity Ingestion may cause severe discomfort

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H1a

Colour

Sunlight

  • Partial Shade

  • Aspect West-facing or East-facing

  • Exposure Sheltered

Soil

  • Chalk

    Loam

  • MoistureMoist but well-drained

  • SoilLoam

  • pHAcid, Neutral

Size

  • Ultimate height

    1-1.5 metres

  • Ultimate spread

    1-1.5 metres

  • Time to ultimate height

    5-10 years

How to grow

Cultivation Grow indoors in a potting mixture of equal parts of composted bark, loam and sand, in filtered light. Water freely in the growing season and provide high humidity by placing the container on a tray or moist gravel or pebbles. Apply a balanced liquid fertiliser every 2-3 weeks. Water moderately in winter. Requires a minimum temperature of 15-18�C (59-64�F)

Propagation Propagate by seed at 23�C (73�F) as soon as ripe. Propagate by Division in spring or summer. Propagate by stem cuttings in spring

Suggested planting locations and garden types Patio & Container Plants

How to care

Pruning No pruning necessary

Pests Glasshouse red spider mite and mealybugs may occur

Diseases Generally trouble free

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