Plants by mail order since 1984, over 4100 plants online today!
6th January 2021. In line with the current government lockdown rules, Burncoose Nurseries is closed to visitors. However at present we are able to offer click and collect to local customers. This will be weekdays only, not weekends.
Mail order is continuing as normal. However please allow extra time for the couriers to deliver, once despatched from us. Sorry to say that some depots are experiencing high volumes of traffic, also staff shortages.
HYDRANGEA paniculata 'Kyushu'
Commonly known as Hortensia
Long pointed panicles with star-like flowers, erect growing
Further Reading....
- Details
- Description
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Deciduous - large, glossy, toothed, mid-green leaves.
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White
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Height - 5m (16ft)
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Spread - 2.5m (8ft)
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Tall Shrub - erect shrub
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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)
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Full sun - requires a sheltered site
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Partial shade
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Harmful if eaten - These will give you an upset tummy, so please don't eat any of these.
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May cause skin allergy or irritant - Having skin or eye contact with these plants could result in an allergic reaction, burning or rash.
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Additional Features - Good to know - - cut back previous season's growth to within a few buds of the woody framework in spring to produce larger flowerheads.
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Pests & Diseases - red spider mites, scale insects, vine weevils, capsid bugs, grey mould(Botrytis), hydrangea virus, powdery mildew, leaf spot, honey fungus.
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Place of origin - Japan (Kyushu Island). Collected as a wild seedling by Collingwood Ingram in 1926.
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Burncoose Specialities - Hydrangeas -
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Flower Shape - Star-shaped - - on long pointed panicles.
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Hardiness - Fully hardy -
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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 -
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 -
Seasonal Interest - Autumn -
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Summer
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Soil Conditions - Fertile moist well-drained soil - - humus-rich
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Wildlife - Bee friendly -
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Rabbit Resistant
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Hydrangeas - Care Guide
- Hydrangeas for everyone!
- Soil & Feeding
- Pruning Hydrangeas
- Pruning Hydrangeas - Video Tip ondemand_video
- Hydrangeas, keeping them blue - Video Tip ondemand_video
- Propagation
- Drying Flower Heads
- Drying hydrangea flower heads - Video Tip ondemand_video
- Popular Mopheads & Lacecaps
- Hydrangeas and other plants
- Further Reading
5m (16ft)
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2.5m (8ft) |
Useful extras...

Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00

Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
2 options from £6.00

Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50

Fertilisers & Feeds - Vitax
Hydrangea Colourant
For changing pink hydrangea flowers to blue, or making blue flowers darker. If your soil is alkaline the proportions should be doubled.
Only £6.50

Garden Goodies
Slate Plant Labels
These wonderfully tactile natural slate plant labels are hand made in Cornwall and come with a chalk pen.
Just stick them in your pot or border. Pack of 6.
Only £10.20

Garden Goodies
Slate Tie-on Plant Labels
Hand made in Cornwall, these delightful natural slate labels are perfect for pots.
Comes with chalk pen. Pack of 5
Only £10.20