• 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

Orontium aquaticum

golden club

  • Other common names golden club
    floating arum

    never-wets
    tawkin

    see more
  • Family Araceae

  • Genus Orontium are rhizomatous aquatic perennials with oblong-elliptic, submerged, floating or aerial leaves and tiny bright yellow flowers near the tips of the slender white spadix in spring and summer

  • Details O. aquaticum is a marginal aquatic perennial with glaucous leaves to 25cm in length, and slender flowering spadices to 15cm in height

  • Plant range E USA

Characteristics

  • Foliage Deciduous

  • 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)

    H5

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Exposed or Sheltered

Soil

  • Clay

    Clay

  • Loam

    Loam

  • MoisturePoorly-drained

  • SoilClay, Loam

  • pHNeutral, Acid, Alkaline

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grow in deep mud at pool margins or in loam filled baskets in water no more than 60cm deep, in full sun. Short-lived flower spikes should be removed as they fade

Propagation Propagate by division of rhizomes in spring, or by seed sown in very shallow water as soon as ripe

Suggested planting locations and garden types Low Maintenance

How to care

Pruning Deadhead and remove yellow leaves regularly

Pests Generally pest free

Diseases Generally disease free

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