• 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

Muehlenbeckia complexa

necklace vine

  • Other common names necklace vine
    Australian ivy

    Australian maidenhair vine
    mattress vine
    maidenhair vine
    wire plant
    wire vine

    see more
  • Synonyms Muehlenbeckia axillaris misapplied

  • Family Polygonaceae

  • Genus Muehlenbeckia are evergreen or deciduous shrubs or semi-woody climbers, with alternate leaves or sometimes none. Flowers are inconspicuous, whitish or greenish

  • Details M. complexa is a deciduous climber, forming dense masses of slender, wiry, much interlaced stems, reaching 2.5-3m but vertical height usually not relevant. Dark green leaves are small, to 2cm long, variable in shape (roundish, heart-shaped, oblong and fiddle-shaped). Flowers greenish, borne in small terminal and axillary spikes in autumn. The perianth persists to a fruiting stage, becoming enlarged, glistening waxy white, enclosing a black, shining nutlet

  • Plant range New Zealand


  • Foliage Deciduous

  • Habit Trailing

  • 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)




  • Full Sun

  • Partial Shade

  • Aspect South-facing or West-facing

  • Exposure Sheltered


  • Sand


  • Chalk


  • Loam


  • MoistureMoist but well-drained, Well-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral


  • Ultimate height 2.5-4 metres

  • Ultimate spread 1.5-2.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grow in moist, well-drained soil in full sun or light shade with shelter from cold winds; suitable support will be needed

Propagation Propagate by semi-ripe cuttings with bottom heat in summer

Suggested planting locations and garden types Banks and Slopes Wall-side Borders City & Courtyard Gardens Coastal Cottage & Informal Garden

How to care

Pruning Pruning group 11

Pests Generally trouble free

Diseases Generally trouble free

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