Castanea mollissima (Chinese Chestnut)


Michael's Opinion

Castanea mollissima has a nice rounded crown. The summer flowers emit an awful odour that may be offensive to some people. Autumn clean-up is difficult due to the sharp spikes on the protective shell of the fruit. Overall this is a nice looking tree but it is not recommended for residential areas.

Botanical Information

FamilyFagaceae
GenusCastanea
Speciesmollissima
CategoryWoody
TypeTree (deciduous)
Pronunciation

Details

USDA Hardiness Zone5-8
USDA Hardiness Ref.
Canadian Hardiness Zone6-9
Canada Hardiness Ref.
RHS Hardiness Ref.
Temperature (°C)-28
Temperature (°F)-20
Height12 m
Spread12 m
GrowthMedium
Flowering PeriodJune

Description and Growing Information

General DescriptionCourse textured, medium size tree with a rounded top and glossy green foilage.
ID CharacteristicDistingushed by pubesecence on underside of the leaves.
ShapeRounded crown, low branched.
PropagationSeed should be stratified in cool moist condition for 60 – 90 days at a temperature from 0-5 °C.
CultivationWell drained but good garden soils are needed. Requires ample room in the landscape.
PestsDiseases include powdery mildew, leaf spots, twig canker, it is resistant to chestnut blight (Cryphonecrtia parasitica) but not immune.
Notable SpecimensVineland Research and Innovation Centre, Vineland, Ontario, Canada.
HabitatUsed as a street tree, or as a replacement for the American Chestnut.
Bark/Stem DescriptionGrey brown in colour ridged and furrowed.
Flower/Leaf Bud Description6 mm long, ovoid, with 2-3 weakly overlapping scales.
Leaf DescriptionSimple, alternate arrangement, oblong, waxy with many prominent teeth. Wider leaf base than the American Chestnut.
Flower DescriptionYellowish white flowers that occur in clusters. The flowers give off a strong odour when crushed.
Fruit DescriptionChestnuts surrounded by a green spiny shell, usually 3 nuts per shell.
Colour DescriptionDark green summer foliage and yellow bronze autumn foliage. Grey brown bark.
Texture DescriptionCourse textured.

Photographs