Elaeocarpus decipiens (Japanese Blueberry Tree)


Botanical Information

FamilyElaeocarpaceae
GenusElaeocarpus
Speciesdecipiens
CategoryWoody
TypeTree (evergreen)
OriginChina in Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Yunnan, Zhejiang provinces. Also found in Japan, Vietnam and Taiwan.
Ethnobotanical Uses
Disclaimer
The seed of the berries have been used in the Hindu culture as prayer beads.

Details

USDA Hardiness Zone8b - 11a
USDA Hardiness Ref.
Canadian Hardiness Zone4 - 9
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-9
Temperature (°F)20
Height12 - 18 m
Spread6- 9 m
GrowthSlow
Flowering PeriodMay, June

Description and Growing Information

General DescriptionA small tree or large hedge with glossy, dark green leaves.
ID CharacteristicLong, narrow, pointed dark green leaves that emerge a bronze colour.
ShapeDense, upright oval/columnar.
LandscapeUsed as hedges, tall screens, street trees or as a backdrop.
PropagationPropagation by soft wood cuttings or seed.
CultivationPrefers rich, well-drained soil with a pH of 6 - 7. It tolerates a wide variety of media and prefers full sun, but can survive in partial shade.
HabitatSub-tropical coasts.
Bark/Stem DescriptionMature bark is smooth and dark grey to brown with prominent, raised tan and brown lenticels. New growth emerges as a bright green.
Flower/Leaf Bud Description​Buds are small, ovoid, green and about 1.6 mm or less in length.
Leaf DescriptionLeaves are arranged alternately. They are a lustrous dark green and measure 7 - 12 cm long and about 2.5 cm wide. They have a long, narrow obovate shape. They are simple, pointed, with crenate leaf margins and have a leathery texture. New leaves emerge a rust colour and are hairy, while older leaves turn an orange to bright red before they fall.
Flower DescriptionSmall flowers white to cream in colour and occur in dangling, urn-shaped racemes. They have 5 petals, are usually hidden within the foliage and are particularly fragrant in large numbers.
Fruit DescriptionSmall, royal blue to black in colour, measure about 3.5 to 7 cm in length. They form in drupes and resemble olives.
Texture DescriptionMedium.

Photographs