• 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

Chamaecyparis lawsoniana 'Dik's Weeping'

Lawson's cypress 'Dik's Weeping'

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
Lawson's cypress 'Dik's Weeping'

© RHS

  • Other common names Lawson's cypress 'Dik's Weeping'

  • Family Cupressaceae

  • Genus Chamaecyparis are evergreen trees, usually of narrowly ovoid or columnar outline, with much-branched sprays of small scale-like leaves, and small, globose cones; tiny red male cones are conspicuous in a few cultivars

  • Details 'Dik's Weeping' is a slow-growing, narrow, upright tree, to 10m tall, with pendulous branchlets densely-clothed with blue-green foliage

Characteristics

  • Foliage Evergreen

  • Habit Columnar/Upright

  • Toxicity Foliage may cause skin irritation

  • 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 North-facing or West-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Loam

    Loam

  • Chalk

    Chalk

  • MoistureMoist but well-drained

  • SoilSand, Clay, Loam, Chalk

  • pHAcid, Neutral

Size

  • Ultimate height 8-12 metres

  • Ultimate spread 2.5-4 metres

  • Time to ultimate height 20-50 years

How to grow

Cultivation Grows well in moist but well-drained soil. Tolerant of chalk soils but prefers slightly acidic soil

Propagation Propagate by semi-hardwood cuttings

Suggested planting locations and garden types Architectural

How to care

Pruning None required

Pests Generally trouble free but may be affected by aphids

Diseases May be subject to phytophthora root diseases

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