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Aesculus hippocastanum 'Baumannii' (d)

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© RHS 2002

Characteristics

Plant type

Tree

Habit

Spreading / Branched

Toxicity

Ingestion may cause severe discomfort

Resilience

Hardiness

old H4 (hardy)

Colour

Flower

White and Yellow in Spring

Foliage

Brown and Red in Autumn
Green in Spring and Summer

Size

Ultimate height

Higher than 12 metres

Ultimate spread

wider than 8 metres

Time to ultimate height

20-50 years


Preferred common name

Baumann's horse chestnut

Family

Sapindaceae


Aesculus can be deciduous trees or large shrubs with showy flowers, palmately-lobed leaves and sometimes good autumn colour

'Baumannii' is a large, broad-crowned deciduous tree with large dark leaves of 5-7 leaflets. Flowers double, white with yellow marks that age to red. Fruit not developing

Synonym(s)

  • Aesculus hippocastanum 'Flore Pleno'

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

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

Cultivation

Only suitable for large gardens

Soil

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

Propagation

Propagate by seed or grafting

Suggested planting locations and garden types

Architectural or Low Maintenance


How to care

Pruning

Pruning group 1

Pests

Can get horse chestnut scale and leaf-mining moths

Diseases

A canker, Coral spot and a leaf spot may be a problem