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Commonly known as Oak-leafed hydrangea
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
Deciduous - deeply 5-7 lobed, mid-green leaves to 20cm (8in) long.
Height - 2m (6½ft)
Spread - 2.5m (8ft)
Medium shrub - Typically grow to around 4-6 feet in height - mound-forming shrub producing conical panicles to 25cm (10in) tall. Produces fertile and sterile flowers. Sterile flowers become pink-tinged with age.
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)
Full sun - shelter from cold, drying winds
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.
Additional Features - 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 - southeastern USA.
Flower Shape - Panicles - - conical panicles
Hardiness - Fully hardy -
Pruning group - 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
Seasonal Interest - Autumn -
Soil Conditions - Fertile moist well-drained soil - - humus-rich
Wildlife - Rabbit Resistant -
- Hydrangeas for everyone!
- 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