• AGM plants

    AGM plants have been through a rigourous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Hydrangea aspera subsp. sargentiana

Sargent hydrangea

Sargent hydrangea

© � RHS 2001

  • Other common names Sargent hydrangea

  • Synonyms Hydrangea sargentiana

  • Genus 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

  • Family Hydrangeaceae / Hydrangeaceae

  • Species 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

  • Plant range China

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Toxicity May cause mild stomach upset if ingested

Colour

Sunlight

  • Full Sun

  • Partial Shade

  • Aspect North-facing or East-facing or South-facing or West-facing

  • Exposure Sheltered or Exposed

Soil

  • Chalk

    Sand

  • Chalk

    Clay

  • Chalk

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Clay, Loam

  • pHAcid, Neutral

Size

  • Ultimate height

    1.5-2.5 metres

  • Ultimate spread

    1.5-2.5 metres

  • Time to ultimate height

    10-20 years

How to grow

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

Propagation Propagate by softwood cuttings

Suggested planting locations and garden types Flower borders and beds City & Courtyard Gardens Cottage & Informal Garden

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

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