Hibiscus syriacus 'Oiseau Bleu'
Hibiscus syriacus 'Oiseau Bleu' – Rose of Sharon 'Oiseau Bleu'
Hibiscus syriacus 'Oiseau Bleu' – Rose of Sharon 'Oiseau Bleu'
Exposure
- Sun
Rusticity
Bloom time
- July
- August
- September
- Striking sky blue large flowers
- Vibrant bloom continuing into fall
- Attracts hummingbirds and butterflies
- Upright structure ideal as specimen
- Excellent summer heat tolerance
Indulge in the presence of the 'Oiseau Bleu' Rose of Sharon. This dramatic shrub infuses an exotic touch into the garden by unfurling majestic sky-blue flowers enhanced by a captivating deep purple center. Its generous blooms illuminate the landscape from mid-summer through fall, attracting hummingbirds and butterflies. Adopt this exceptional plant to structure your garden designs with elegance and brilliance.
Characteristics
- Foliage : Deciduous, deeply lobed leaves of a vibrant, attractive green appearing in late spring.
- Flowering : Large, single violet-blue flowers with a dark purple heart, continuously renewing from July through September.
- Light Requirement : Requires full sun exposure to achieve maximum bloom.
- Habit : Bushy shrub habit, naturally upright and well-branched.
- Growth : Medium growth rate, reaching 2 to 3 meters at maturity.
- Soil : Thrives in rich, moist, well-drained soil while adapting to various soil conditions.
- Temperature : Hardiness zone 5.
- Resistances : Tolerates summer heat and urban pollution well once established.
Use
- Types of Use : Integrate this shrub into borders, informal flowering hedges, as a specimen plant, or in large containers on sunny patios.
- Decorative Benefits : Delivers a rare sky-blue color and brings a striking vertical presence late in the season.
Maintenance
- Watering : Water regularly during the first year following planting. Maintain slightly moist soil during summer dry spells.
- Fertilization : Apply a balanced fertilizer in early spring to stimulate growth and flower bud formation.
- Pruning : Prune early in spring before growth starts to maintain a compact habit and encourage new wood that bears flowers.
- Planting : Plant in a hole twice as wide as the root ball, amending the soil with compost to ensure optimal rooting.
- Winter Protection : Apply a generous layer of mulch at the base and shelter young plants from prevailing winds during the first few winters.
(syn. Hibiscus syriacus 'Blue Bird')
Plant details
Dimensions
Dimensions
Characteristics
Characteristics
Habit:
- Columnar
Flowering colours:
- Blue
Plant needs
Plant needs
Watering:
- Moderate
Maintenance:
- Winter protection
- Prune spring
- Cut back in spring
Soil requirement:
- Rich
- Fresh
- Moist
Features
Features
Resistance:
- Heat
- Cold
- Disease
Attract:
- Hummingbirds
- Butterflies
- Pollinators
Use:
- Container
- Border
- Hedge
- Specimen
- Flower bed
- In-ground
- Container feature
Attribute:
- Spectacular flowers
- Cut flower
- Long flowering

Related articles
-
Trees and shrubs for small space landscaping
Read the articleHaving an exceptional garden is possible, even in the city! Discover our selection of trees and shrubs perfect for small lots, and transform your outdoor space into a green oasis.
-
When and how to plant shrubs: successful planti...
Read the articleDiscover our complete guide to mastering shrub planting and care. Learn the best planting times, essential techniques, along with tips for watering, fertilizing, and managing common issues. Our practical advice...
-
Choosing shrubs to plant
Read the articleIn exterior design, shrubs represent furniture. They set the scene and set the tone for the flower bed. Shrubs constitute the living architectural elements of the landscaped garden. As proof,...
-
Shrubs: beautiful all year long
Read the articleLe grand choix d’espèces fournit l’occasion de varier les formes, les feuillages, et de créer des floraisons successives, bref, de composer un jardin magnifique à longueur d’année. Pour toutes ces...