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Clethra alnifolia 'Paniculata'

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© RHS 2002

Characteristics

Plant type

Shrub

Habit

Bushy

Fragrance

Flower

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

White in Autumn and Summer

Foliage

Green in Autumn, Spring and Summer

Size

Ultimate height

1.5-2.5 metres

Ultimate spread

1.5-2.5 metres

Time to ultimate height

10-20 years


Preferred common name

sweet pepper bush

Family

Clethraceae


Clethra can be deciduous or evergreen trees or shrubs, sometimes with attractive bark, with simple leaves and small, fragrant, usually white, bell-shaped flowers in racemes or panicles

'Paniculata' is a bushy deciduous medium-sized shrub with finely-toothed, obovate leaves, and small fragrant white flowers in panicles at the shoot-tips

Other common names

  • panicled white alder

Synonym(s)

  • Clethra alnifolia var. paniculata
  • Clethra paniculata

How to grow

Sunlight

  • Part shade
  • Full shade

Aspect

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

Cultivation

Grow in moist, acidic soils in a sheltered position in partial shade or shade

Soil

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

Propagation

Propagate by seed or softwood cuttings

Suggested planting locations and garden types

Cottage/Informal Garden or Low Maintenance


How to care

Pruning

Pruning group 1

Pests

Generally pest free

Diseases

Generally disease free