Aesculus x arnoldiana 'Autumn Splendor' (Autumn Splendor Arnold's Buckeye)


Botanical Information

FamilySapindaceae (Hippocastanaceae)
GenusAesculus
Speciesx arnoldiana
Cultivar'Autumn Splendor'
CategoryWoody
TypeTree (deciduous)
Pronunciation

Details

USDA Hardiness Zone5
USDA Hardiness Ref.
Canadian Hardiness Zone4 - 6a
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-29 - (-23)
Temperature (°F)-20 - (-10)
Height25 m
GrowthMedium
Flowering PeriodJune, July

Description and Growing Information

PropagationPropagate by grafting in late winter and budding in late summer, using basal buds from the shoots nearest the old wood, which normally remain dormant.
CultivationGrow in any deep, fertile, moisture-retentive soil in full sun or shade.
PestsSusceptible to coral spot, canker and witches' brooms. Scorching can also sometimes occur in hot, dry summers.
HabitatHorticultural origin.
Leaf Description5 elliptical, dark green leaflets to 12 cm that are glabrous with a hairy midrib beneath.
Flower DescriptionFlowers in erect racemes, with yellow petals, the upper part of which are tinged red.
Fruit DescriptionFruit is scaly with short spines.

Photographs