Rhododendron > Rhododendron 'Duke of Cornwall'
Rhododendron
'Duke of Cornwall'
Duke of Cornwall Rhododendron
Origin: Horticultural origin (Hybridiser: Gill, Richards & Sons. Penryn, Cornwall, England).
| Family |
| Ericaceae |
| Genus |
| Rhododendron |
| Cultivar |
| 'Duke of Cornwall' |
| Type |
| Shrub (evergreen) |
| USDA Hardiness Zone |
| 7 - 9 |
| Canadian Hardiness Zone |
| Requires cold season protection under glass. |
| RHS Hardiness Zone |
| H4 |
| Height |
| 8-12 m |
| Spread |
| 2.5-4 m |
Photographs
Description and Growing Information
Flowering Period
| General Description |
| An upright, vigorous evergreen shrub, bearing large dome-shaped trusses of bright crimson flowers and conspicuously veined green leaf. |
| Landscape |
| Informal hedge. Will provide a beautiful display of bright crimson flowers which are very appealing. |
| Cultivation |
| Grow in moist but well-drained, leafy, humus-rich acid soil in part shade with shelter. |
| Shape |
| A large dome-shaped. |
| Growth |
| Medium |
| Pests |
| Potential insects include vine weevil, rhododendron leafhopper, pieris lacebug, scale insects, caterpillars and aphids. Potential diseases include powdery mildews, rhododendron petal blight, rhododendron bud blast, silver leaf and honey fungus |
| Bark/Stem Description |
| Dark brown-grey. |
| Leaf Description |
| Thick, glabrous, simple leaves in a lanceolate/elliptical shape, leathery texture, 6-18 cm long and 2-5 cm wide, growing in a whorled pattern. Dark green above, light green underneath. |
| Flower Description |
| Funnel campanulate, 2.5 5 cm long, bright crimson colour, outside scaly, sometimes fragrant. Truss holds 4-6 flowers. |
| Notable Specimens |
| Caerhays Castle, Goran, Cornwall, United Kingdom. |
| Propagation |
| Propagate by seed when ripe, or semi-ripe cuttings in late summer, layering in autumn or grafting in late summer or late winter. |
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