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Hydrangea alternifolia

A deciduous subshrub to around 90cm with coarsley toothed, oblong, alternate dark green foliage and white, fertile flowers, similar to those of lacecap hydrangeas, surrounded by showy pink sterile ones appearing from summer through until early autumn

Synonyms
Cardiandra alternifolia

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
5–10 years
Ultimate spread
0.5–1 metres
Growing conditions
Clay
Loam
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Pink Green
Autumn White Pink Green
Winter
Position
  • Partial shade
Aspect

North–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Hydrangeaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Bushy
Potentially harmful
Skin allergen. Wear gloves and other protective equipment when handling. Pets (dogs, cats): Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
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

Name status

Correct

How to grow

Cultivation

Grow in any moist but well-drained soil in partial shade or grow in sun if soil remains reliably moist. Improve chalky soils with organic matter to support good growth. See shrubby hydrangea cultivation for further advice

Propagation

Propagate by softwood cuttings in early summer or hardwood cuttings in winter

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Low Maintenance
  • Flower borders and beds
Pruning

Pruning group 4

Pests

May be susceptible to aphids, capsid bug, hydrangea scale and vine weevil

Diseases

May be susceptible to a leaf spot, grey moulds, powdery mildews and honey fungus

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