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We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.

Virtually all of the features of the old searches are still available and in addition we have added several new features to create a more comprehensive and user friendly search experience.

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  • If you enter just a plant name, you will see results from the old RHS Plant Finder and Selector databases
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  • Our Botanical team are working hard to increase the number of plants with detailed information.

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  • 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
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Thuja plicata 'Atrovirens'

western red cedar 'Atrovirens'

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
western red cedar 'Atrovirens'

© RHS 1999

24 suppliers RHS Plant Shop from £17.97

  • Other common names western red cedar 'Atrovirens'

  • Family Cupressaceae

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

  • Details 'Atrovirens' is a fast-growing, conical, evergreen conifer making a medium-sized tree with red-brown bark and aromatic, rich green foliage in spreading or drooping sprays

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • Fragrance Leaf

  • Toxicity Contact with foliage may irritate the skin

  • 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

  • Chalk

    Chalk

  • Clay

    Clay

  • Sand

    Sand

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height Higher than 12 metres

  • Ultimate spread wider than 8 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 Flower borders and beds Hedging & Screens Cottage & Informal Garden

How to care

Pruning No pruning required

Pests May be attacked by scale insects and conifer aphids

Diseases May be subject to coryneum canker

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Thuja plicata 'Atrovirens'

western red cedar 'Atrovirens'

Buy from £17.97 at the RHS Plants Shop

Buy from £17.97 at the RHS Plants Shop

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