• 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

Thuja plicata 'Irish Gold' (v)

western red cedar 'Irish Gold'

western red cedar 'Irish Gold'

© � RHS 1999

  • Other common names western red cedar 'Irish Gold'

  • Synonyms Thuja plicata 'Extra Gold'
    Thuja plicata 'Zebrina Extra Gold'

    Thuja 'Extra Gold'

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  • Genus Thuja are fast-growing evergreen trees of narrowly conical habit, with flat sprays of tiny, aromatic, scale-like leaves and small knobbly cones

  • Family Cupressaceae / Cupressaceae

  • Details 'Irish Gold' is a broadly conical evergreen conifer making a small tree with drooping sprays of rich green foliage heavily flecked and banded with yellow


  • Foliage Evergreen

  • Habit Bushy

  • Fragrance Leaf

  • Toxicity Contact with foliage may irritate the skin



  • Full Sun

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

  • Exposure Exposed or Sheltered


  • Chalk


  • Chalk


  • Chalk


  • Chalk


  • MoistureMoist but well-drained

  • SoilSand, Clay, Chalk, Loam

  • pHAcid, Alkaline, Neutral


  • Ultimate height

    8-12 metres

  • Ultimate spread

    2.5-4 metres

  • Time to ultimate height

    20-50 years

How to grow

Cultivation Grow in moist but well-drained soil. Protect from drying winds especially when young. Suitable for hedging or screening

Propagation Propagate by semi-hardwood cuttings

Suggested planting locations and garden types Hedging & Screens Low Maintenance Architectural

How to care

Pruning No pruning required

Pests May be attacked by scale insects

Diseases May be subject to a canker

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