Rhododendron 'Earl of Athlone' (Earl of Athlone Rhododendron)


Botanical Information

FamilyEricaceae
GenusRhododendron
Cultivar'Earl of Athlone'
CategoryWoody
TypeShrub (evergreen)
OriginA cross between R. Queen Wilhelmina x R. Stanley Davis. Cultivated by C.B. van Ness.

Details

USDA Hardiness Zone7
USDA Hardiness Ref.
Canadian Hardiness Zone8
Canada Hardiness Ref.
RHS Hardiness ZoneH5-H6
RHS Hardiness Ref.
Temperature (°C)-17.8-(-12.2)
Temperature (°F)0-10
Height1.5-2 m
Spread1.5-2 m
GrowthMedium
Flowering PeriodApril, May, June

Description and Growing Information

PropagationPropagated by stem cuttings.
CultivationConsistently moist, well drained, acidic soils.
Notable SpecimensNational Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom.
Leaf DescriptionThe long, narrow leaves are dark green.
Flower DescriptionThe dome-shaped flowers are bright red and features 15-20 petals. They grow 10-15 cm across.

Photographs