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HIBISCUS syriacus 'Blue Bird'
Commonly known as Rose of Sharon, Tree hollyhock
Very large single blue flowers with a dark centre
Further Reading....
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DeciduousOval to diamond-shaped, 3-lobed, coarsely-toothed, dark green leaves to 10cm (4in) long
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Blue -
Height3m (10ft) -
Spread2m (6½ft)
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Tall ShrubErect shrub. Flowers are produced from the leaf axils
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Hardy - cold winterHardy 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
HIBISCUS syriacus 'Blue Bird'
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional Features
Good to knowSyn. H. 'Oiseau Bleu'. Can be kept compact by spring pruning as flowers form on current year's growth
Pests & DiseasesAphids, powdery mildew.
Place of originChina to India. -
Flower ShapeSingleRow of petals round conspicuous stamens - no more than 8 petalsTrumpetTo 8cm (3in) across
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HardinessFully hardy
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Pruning group
Pruning group 1Suitable 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 InterestAutumnSummer
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Soil ConditionsFertile moist well-drained soilHumus-richNeutral to alkaline soil
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Hibiscus syriacus - Growing Guide
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3m (10ft)
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2m (6½ft) |
HIBISCUS syriacus 'Woodbridge'
Rose of Sharon, Tree hollyhock
Available from £18.50
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Russian sage
Available from £13.50
POTENTILLA fruticosa 'Abbotswood'
Shrubby cinquefoil, Buttercup shrub
Available from £13.50
CERATOSTIGMA plumbaginoides
Shrubby plumbago
Available from £14.50
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
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
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