Hibiscus syriacus 'Oiseau Bleu' (Oiseau Bleu Rose Mallow)
Botanical Information
| Family | Malvaceae |
| Genus | Hibiscus |
| Species | syriacus |
| Cultivar | 'Oiseau Bleu' |
| Synonyms | Hibiscus syriacus 'Blue Bird' |
| Category | Woody |
| Type | Shrub (deciduous) |
Details
| USDA Hardiness Zone | 5 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 4a - 6a |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -29 -(-23) |
| Temperature (°F) | -20 -(-10) |
| Height | 1.5 - 2.5 m |
| Spread | 1.5 - 2.5 m |
| Growth | Medium |
| Flowering Period | July, August, September |
Description and Growing Information
| General Description | Hibiscus syriacus 'Oiseau Bleu' is an upright deciduous shrub with dark green, tri-lobed leaves and violet-blue flowers with maroon centres. |
| Cultivation | Grow in a sheltered location, in full sun, in moist, well-drained soil. |
| Pests | No serious pests or diseases of note but may be affected by powdery mildew. |
| Habitat | Horticultural origin. |
| Leaf Description | Dark green, diamond-shaped with 3 lobes. |
| Flower Description | Single, up to 8 cm wide, five violet-blue, slightly ruffled petals with a maroon centre and white stamen. |
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