Aesculus turbinata (Japanese Horsechestnut)


Botanical Information

FamilySapindaceae (Hippocastanaceae)
GenusAesculus
Speciesturbinata
CategoryWoody
TypeTree (deciduous)
OriginJapan
Pronunciation

Details

USDA Hardiness Zone6
USDA Hardiness Ref.
Canadian Hardiness Zone5 - 6a
Canada Hardiness Ref.
RHS Hardiness ZoneH7 - H6
RHS Hardiness Ref.
Temperature (°C)-23 - (-18)
Temperature (°F)-10 - 0
Height15 m
Spread8 m
Flowering PeriodJune, July

Description and Growing Information

General DescriptionA large coarse textured tree, similar in initial observation to A. hippocastanum.
ID CharacteristicBroad almost pear shaped fruit about 5 cm wide with a rough surface and few spines.
ShapeLarge rounded crown.
LandscapeLimited use in the landscape but suitable in large open areas where its form and white flowers can be seen from a distance.
PropagationThe seed germinates almost immediately and must be given protection so it is best to sow it immediately upon collection in a cold frame. The seed is recalcitrant and has a very limited viability and must not be allowed to dry out. It cannot be stored long term (greater than three months).
CultivationReadily cultivated in average garden or landscape conditions. Suitable also for heavy soils but that have positive drainage.
Pests Prone to horse chestnut leaf miner ( Cameraria ohridella).
Notable SpecimensWeldon Library, University of Western Ontario, Ontario, Canada.
Flower/Leaf Bud DescriptionLarge pointed resinous buds.
Leaf DescriptionLarge leaves, usually five leaflets per leaf but can be more, sessile and obovate.
Flower DescriptionLarge white panicles to about 30 cm in height.The flowers are hermaphrodite.
Fruit DescriptionBroad almost pear shaped fruit about 5 cm wide with a rough surface and few spines.
Colour DescriptionAutumn colour of little value.
Texture DescriptionVery coarse textured tree.

Photographs