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Tsuga heterophylla AGM

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© RHS 2000

Characteristics

Plant type

Conifer or Tree

Habit

Columnar/Upright

Resilience

Hardiness

H6 (hardy - very cold winter)

Colour

Foliage

White and Dark Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

Higher than 12 metres

Ultimate spread

wider than 8 metres

Time to ultimate height

20-50 years


Preferred common name

western hemlock

Family

Pinaceae


Tsuga are evergreen trees, broadly conical in habit, with a drooping leading shoot,linear leaves which are white beneath, and small ovoid cones

T. heterophylla is a vigorous large evergreen tree to 30m or more, conical in habit, with elegantly spreading branches bearing short, flattened, dark green needles striped white beneath. Ovoid cones are 2.5cm in length

Other common names

  • Alaskan pine
  • Californian hemlock
  • western hemlock spruce

How to grow

Sunlight

  • Full sun
  • Part shade
  • Full shade

Aspect

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

Cultivation

Grow in moist but well-drained soil. Good specimen tree. Shade tolerant but requires protection from wind

Soil

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

Propagation

Propagate by seed or semi-hardwood cutings

Suggested planting locations and garden types

Architectural or Low Maintenance


How to care

Pruning

No pruning required

Pests

Generally pest free

Diseases

Generally disease free