Cedrus deodara 'Robusta'

RHS Plant Profile

deodar 'Robusta'

RHS / Joanna Kossak

Synonyms

Cedrus deodara 'Robusta Glauca'

Conifers Trees

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A large, broad evergreen conifer 12-15m in height with horizontal branches that are pendulous at the ends. Clusters of long, dark blue-green needles grow in clusters along with upright reddish-brown cones.

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

4-8 metres

Size

Time to Maturity: 20–50 years
Max Spread: 4-8 metres
Max Height: Higher than 12 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Well–drained
pH: Acid or Neutral

Position

Full sun

Aspect: East–facing or North–facing or South–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: Pendulous weeping, 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

Grow in a well-drained neutral to acid soil in full sun. Protect saplings from frosts and shelter from winds

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