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Hydrangea aspera subsp. sargentiana

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© RHS 2001

Characteristics

Plant type

Shrub

Habit

Bushy

Toxicity

May cause mild stomach upset if ingested; contact with foliage may aggravate skin allergies

Resilience

Hardiness

old H3 (may need winter protection)

Colour

Flower

Blue, Purple and White in Autumn and Summer

Foliage

Dark Green in Autumn, Spring and Summer

Stem

Brown and Orange in

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

Sargent hydrangea

Family

Hydrangeaceae


Hydrangea can be deciduous or evergreen shrubs, or self-clinging climbers, with flowers in clusters usually comprising both small fertile and more showy sterile flowers; often good autumn colour

H. aspera subsp. sargentiana is an upright medium-sized deciduous shrub of open habit, with peeling bark and large, velvety ovate leaves. Flowers in large flat heads, purple or blue, surrounded by white ray florets

Synonym(s)

  • Hydrangea sargentiana

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

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

Cultivation

Grow in moist but well-drained soil in full sun or partial shade

Soil

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

Propagation

Propagate by softwood cuttings

Suggested planting locations and garden types

City/Courtyard Gardens, Cottage/Informal Garden or Flower borders and beds


How to care

Pruning

Pruning group 1

Pests

Aphids, capsid bug and hydrangea scale may be a problem

Diseases

May be subject to a leaf spot