Cotinus 'Ruby Glow'

RHS Plant Profile
smokewood 'Ruby Glow'

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A bushy shrub to around 1.8m high and wide with leaves that emerge flushed bronze in the spring, become darker green with purple and reddish tints in summer and turn shades of yellow, purple and red before falling in autumn. Fluffy pink flowerheads are borne in summer

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity
10–20 years
Max Spread
1.5-2.5 metres
Max Height
1.5-2.5 metres

Growing Conditions

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

Position

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

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Anacardiaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Cotinus are large deciduous shrubs or small trees with simple, obovate leaves often colouring well in autumn, and insignificant flowers borne in large, plumy panicles in summer becoming colourful in fruit
Name Status
Unresolved

How to Grow

Cultivation

Grow in moderately fertile, moist but well-drained soil in full sun or part shade; for best leaf colour grow in full sun

Propagation

Propagate by layering in late winter or early spring or root softwood cuttings in spring

Suggested planting locations and garden types

  • Cottage and informal garden
  • Flower borders and beds

Pruning

Pruning group 1 or pruning group 7 to produce large foliage

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus (rarely), verticillium wilt and powdery mildews in dry conditions