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HYDRANGEA paniculata 'Kyushu'
Commonly known as Hortensia
HYDRANGEA paniculata 'Kyushu'
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
Large, glossy, toothed, mid-green leaves.
Medium shrub Typically grow to around 4-6 feet in height
Erect, medium-sized shrub. Produces long, pointed panicles to 20cm (8in) long
Hardy - cold winter Hardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F)
Requires a sheltered site
Harmful if eaten These will give you an upset tummy, so please don't eat any of these.
May cause skin allergy or irritant Having skin or eye contact with these plants could result in an allergic reaction, burning or rash.
Good to know - cut back previous season's growth to within a few buds of the woody framework in spring to produce larger flowerheads.
Pests & Diseases
red spider mites, scale insects, vine weevils, capsid bugs, grey mould(Botrytis), hydrangea virus, powdery mildew, leaf spot, honey fungus.
Place of origin
Japan (Kyushu Island). Collected as a wild seedling by Collingwood Ingram in 1926.
Suitable for small gardens
Serrate see photos above
Ovate see photos above
Pruning group 1
Suitable for: Deciduous and evergreen trees, and some deciduous shrubs.
Pruning: Minimal pruning required. Prune wayward or crossing branches to maintain a healthy framework.
When: When dormant in the late winter/early spring. Some in the summer/autumn to prevent bleeding of sap.
RHS group 1
Pruning group 4 - Suitable for: Deciduous trees and shrubs that flower on current year's growth or are grown for winter stem effect.
Pruning: Hard prune to a low permanent framework.
When: Annually in early Spring.
RHS group 5, 6 & 7
Fertile moist well-drained soil - humus-rich
- Hydrangeas for everyone!
- Quick tour of hydrangea stocked - Video Tip ondemand_video
- Soil & Feeding
- Pruning Hydrangeas
- Pruning Hydrangeas - Video Tip ondemand_video
- Hydrangeas, keeping them blue - Video Tip ondemand_video
- Drying Flower Heads
- Drying hydrangea flower heads - Video Tip ondemand_video
- Popular Mopheads & Lacecaps
- Hydrangeas and other plants
- Further Reading