The Site Gardener

Plant Library

Explore 4,545 plants, with photos and growing details.

Back to Tools

← Back to plant results

Rhododendron Corneille

Exbury Azalea Corneille

Corneille (Rhododendron ‘Corneille’) is a deciduous azalea with pink flowers. Its display arrives in the later part of the rhododendron flowering season, with the exact timing influenced by local weather. Individual flowers measure about 1½ inches across. The nested floral layers add depth to each blossom. Clusters commonly carry about 8-10 blossoms.

The plant develops a dense crown. The shrub sheds its leaves for winter, making its seasonal foliage and flower display especially noticeable. Allow space for the branches to develop without crowding nearby plants or paths.

Give it acidic, humus-rich soil that stays moist and drains freely. A sheltered position with filtered light or morning sun is a useful starting point; protect the roots from prolonged drying and keep mulch clear of the stems.

Size guide
• Height: About 6 ft at 10 years; growth continues afterward
• Width: Allow for the cultivar’s natural branch spread; a verified numerical spread is not available in this reference.

Hardiness
• Approximate cold tolerance: -15°F
• USDA cold-limit equivalent: Zone 5b
This equivalence is calculated from the published temperature rating. Local conditions and summer climate also affect performance.

Best Uses
• Border
• Woodland Gardens
• Accent Plant

Plant type
Deciduous Shrub, Flowering Deciduous Shrub
Height
6 ft+
Width
6-8 '
Hardiness zones
5b–8
Sunlight
Part shade
Growth rate
Moderate
Bloom time
Spring to summer
Flower color
Pink
Leaf color
Green
Fall color
Green
Attracts
Bees, Butterflies
Soil
Acidic, Humus rich, Moist well-drained
Landscape use
Accent Plant, Border, Woodland Gardens
Shape
Dense
Bark
Smooth
Fruit
No
Fragrant
No
Deer resistant
No
Salt tolerant
No
Drought tolerant
No
10-year height
6 ft