Hydrangea aspera Kawakamii Group
rough-leaved hydrangea Kawakamii Group
A deciduous shrub to 1.5-2m, with soft hairy, mid-green leaves and red-purple leaf stalks. From mid-summer to early autumn, large, domed-shaped, fluffy, purple flowers surrounded by white-pink sterile bracts appear above the foliage.
Synonyms
Hydrangea aspera 'Kawakamii'Hydrangea aspera (Villosa Group) 'Kawakami'
see moreHydrangea kawakamii
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Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
1.5–2.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Alkaline, Neutral, AcidColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Red | |||
|---|---|---|---|---|
| Summer | Purple White Pink | Green Red | ||
| Autumn | Purple White Pink | Green Red | ||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H5Botanical 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
Accepted
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
- Flower borders and beds
- Wall side borders
Pruning
Pests
May be susceptible to aphids, glasshouse red spider mite, scale insects, vine weevil and capsid bug.
Diseases
May be susceptible to a leaf spot, powdery mildews, grey moulds (Botrytis) and honey fungus (rarely)
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