Hibiscus syriacus 'Oiseau Bleu'
rose of Sharon 'Oiseau Bleu'
'Oiseau Bleu' is a medium-sized, upright deciduous shrub with lobed, dark green leaves. Flowers single, violet-blue with a maroon centre, to 8cm in width, in late summer and autumn
Ultimate height1.5–2.5 metres
Time to ultimate height10–20 years
Ultimate spread1.5–2.5 metres
MoistureMoist but well–drained, Well–drained
Colour & scent
- Full sun
South–facing or West–facing
- Native to the UK
Hibiscus can be deciduous or evergreen shrubs, trees, annuals or perennials, with simple or palmately lobed leaves and large, funnel-shaped flowers over a long flowering season
- Name status
How to grow
Grow in a moist but well-drained soil in a sheltered position in full sun
Propagate by semi-hardwood cuttings
Suggested planting locations and garden types
- City and courtyard gardens
- Wall side borders
Generally pest free
Powdery mildews may be a problem
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.