• 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

Picea orientalis

oriental spruce

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
oriental spruce

© RHS 1999

  • Other common names oriental spruce
    eastern spruce

    Caucasian spruce

    see more
  • Family Pinaceae

  • Genus Picea are evergreen trees with rigid, needle-like leaves arranged singly all round the shoots, and narrow, leathery-scaled cones borne near the ends of the shoots

  • Details P. orientalis is an evergreen conifer making a large tree of dense, conical habit. Dark, shining green, needle-like leaves are 6-10mm in length. Cones to 8cm in length, purple

  • Plant range Caucasus, N Turkey

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • 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)

    H7

Colour

Sunlight

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilSand, Clay, Loam

  • pHAcid, Neutral

Size

  • Ultimate height Higher than 12 metres

  • Ultimate spread 4-8 metres

  • Time to ultimate height 20-50 years

How to grow

Cultivation Grow in moist but well-drained acidic soil. Shelter from cold drying winds

Propagation Propagate by grafting or semi-hardwood cuttings

Suggested planting locations and garden types Flower borders and beds Low Maintenance Architectural Cottage & Informal Garden

How to care

Pruning No pruning required

Pests May be attacked by adelgids, aphids and conifer red spider mite

Diseases Generally disease free

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