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Thuja occidentalis 'Holmstrup' AGM

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© RHS 2000

Characteristics

Plant type

Conifer or Shrub

Habit

Bushy

Fragrance

Leaf

Toxicity

Contact with foliage may irritate the skin

Resilience

Hardiness

H6 (hardy - very cold winter)

Colour

Foliage

Bronze and Green in Winter
Green in Autumn, Spring and Summer

Size

Ultimate height

2.5-4 metres

Ultimate spread

1.5-2.5 metres

Time to ultimate height

20-50 years


Preferred common name

white cedar 'Holmstrup'

Family

Cupressaceae


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

'Holmstrup' is a rather slow-growing evergreen conifer making a medium-sized shrub of dense conical habit. Foliage rich green, sometimes tinged bronze at the tips in winter, in upright sprays

Synonym(s)

  • Thuja occidentalis 'Holmstrupii'

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing, North-facing, West-facing or East-facing
  • Exposed or Sheltered

Cultivation

Grow in moist but well-drained soil. Protect from drying winds especially when young. Slow growing

Soil

  • Moist but well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Clay, Sand or Loam

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types

Low Maintenance, Patio/Container Plants or Rock 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