Sequoia sempervirens 'Steel Blue'

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A dense, slow-growing, compact evergreen conifer which can reach a height of around 50m in ideal conditions, with a narrow, upright habit and intense, blue-grey young foliage with a soft, feathery texture. A hardy and wind-tolerant variety for year-round interest, suited to large gardens both in coastal areas or inland. The colour becomes most intense in full sun and cool conditions

Position

Full sun, Partial shade

Soil Types

Clay, Loam

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

Clay Loam
Moisture
Moist but well–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Cupressaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Columnar upright
Genus
Sequoia is a tall and fast-growing evergreen tree with attractive, reddish-brown fibrous bark, and yew-like foliage arranged in two ranks on the shoots; cones are small, reddish-brown when mature
Name Status
Accepted

How to Grow

Cultivation

Grow in moderately fertile, moist but well-drained soil in full sun to light dappled shade. See conifer cultivation

Propagation

Propagate by seed in containers in a cold frame in spring. Root softwood cuttings in summer or semi-ripe cuttings in late summer or autumn

Suggested planting locations and garden types

  • Architectural

Pruning

No pruning required

Pests

May be susceptible to honey fungus

Diseases

Generally pest-free