Rhododendron 'Earl of Athlone' (Earl of Athlone Rhododendron)
Botanical Information
Family | Ericaceae |
Genus | Rhododendron |
Cultivar | 'Earl of Athlone' |
Category | Woody |
Type | Shrub (evergreen) |
Origin | A cross between R. Queen Wilhelmina x R. Stanley Davis. Cultivated by C.B. van Ness. |
Details
USDA Hardiness Zone | 7 |
USDA Hardiness Ref. | |
Canadian Hardiness Zone | 8 |
Canada Hardiness Ref. | |
RHS Hardiness Zone | H5-H6 |
RHS Hardiness Ref. | |
Temperature (°C) | -17.8-(-12.2) |
Temperature (°F) | 0-10 |
Height | 1.5-2 m |
Spread | 1.5-2 m |
Growth | Medium |
Flowering Period | April, May, June |
Description and Growing Information
Propagation | Propagated by stem cuttings. |
Cultivation | Consistently moist, well drained, acidic soils. |
Notable Specimens | National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom. |
Leaf Description | The long, narrow leaves are dark green. |
Flower Description | The dome-shaped flowers are bright red and features 15-20 petals. They grow 10-15 cm across. |
Photographs

Rhododendron 'Earl of Athlone', form. National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom.

Rhododendron 'Earl of Athlone', flower. National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom.

Rhododendron 'Earl of Athlone', bud. National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom.