Cedrus atlantica (Glauca Group) 'Glauca'

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blue Atlas cedar 'Glauca'

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blue Atlas cedar 'Glauca' RHS

Synonyms

Cedrus libani subsp. atlantica 'Glauca'

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Conifers Trees
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An evergreen conifer that develops into a large, spreading tree. The short needles are arranged in small clusters and are silvery-white when young, maturing to blue-green. The purple-brown, upright cones up to 10cm long, mature over a long period and are a permanent feature on mature trees

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

wider than 8 metres

Size

Time to Maturity
20–50 years
Max Spread
wider than 8 metres
Max Height
Higher than 12 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or East–facing or West–facing
Exposure
Exposed or Sheltered
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 & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Pinaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Spreading branched
Genus
Cedrus are large evergreen trees with needle-like leaves arranged spirally on young shoots, and in whorls on short spur-like side-shoots; ovoid cones break up to release the seeds while still attached to the tree
Name Status
Accepted

How to Grow

Cultivation

Good specimen tree but needs space to reach full potential. Grow in any well-drained soil

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types

  • Architectural
  • Low Maintenance

Pruning

No pruning required

Pests

May be susceptible to conifer aphid

Diseases

May be susceptible to honey fungus