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Create your own plant list and get plant care reminders direct to your inbox!
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Beginner
skill rating |
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2.5m
max. spread |
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2.5m
max. height |
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10-20 years
to maturity |
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1 hour care
per year |
Botanical name: Hibiscus syriacus 'Oiseau Bleu'
Other names: Rose mallow 'Oiseau Bleu', Rose mallow 'Blue Bird', Hibiscus syriacus Blue Bird, Rose of Sharon, Hibiscus syracus Bluebird
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Genus: Hibiscus
Variety or cultivar: 'Oiseau Bleu' _ 'Oiseau Bleu' is a mid-sized, upright, deciduous shrub with lobed, dark-green leaves. It bears single, violet-blue flowers with a maroon centre in late summer and autumn
Hibiscus syriacus 'Oiseau Bleu' is: Deciduous
Flower: Violet, Maroon in Summer; Violet, Maroon in Autumn
Foliage: Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn
Habit: Bushy, Erect
Awards: RHS AGM (Award of Garden Merit)
Hibiscus syriacus 'Oiseau Bleu' (Rose mallow 'Oiseau Bleu') will reach a height of 2.5m and a spread of 2.5m after 10-20 years.
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Suggested uses: City, Coastal, Cottage/Informal, Beds and borders, Hedging/Screens, Containers, Wallside and trellises
Cultivation: Plant in moist but well-drained, neutral to alkaline soil in a sheltered, sunny position. Needs long, hot summers to flower well.
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| Soil types: |
Chalky, Clay, Loamy, Sandy (will tolerate most soil types) |
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| Soil drainage: |
Moist but well-drained, Well-drained |
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| Soil pH: |
Alkaline, Neutral |
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| Light: |
Full Sun |
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| Aspect: |
South, West |
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| Exposure: |
Sheltered |
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| Hardiness: |
Hardy (H4) |
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