Elaeocarpus decipiens
Common Name(s):
Previously known as:
- Adenodus sylvestris
- Phonetic Spelling
- el-lee-oh-KAR-pus de-SIP-ee-enz
- Description
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Japanese blueberry tree is a broad-leaved evergreen large shrub or tree in the Elaeocarpaceae family native to temperate East Asia. It is typically found in evergreen forests from 1,300 to nearly 8,000 feet in elevation through much of China and in Vietnam growing to 20 to 35 feet in height with an equal spread, but becoming larger with time (mature trees in nature are known to be 60 feet). The genus Elaeocarpus is derived from the Greek words 'elaia' meaning olive and 'karpos' meaning "fruit" knodding to the olive shaped blue fruits. The specific epithet decipiens is from the Greek 'decipio' meaning "to take" or "catch" though the meaning behind this name is not clear.
Plant in full sun or partial shade in well-drained soil and water regularly until well established. It does best with fairly regular irrigation. It is cold hardy into USDA Zone 8 where winters do not go below 10 or 15 degrees F, such as the Pacific Northwest and Southern California. The leaves emerge with an attractive bronze coloring later turning dark shiny green. Attractive fragrant foliage lures nectaring pollinators like bees and butterflies.
Japanese blueberry tree is adaptable to many climates and relatively pest free, though deer do like to browse the foliage. As a larger shrub it can be used for hedging and large scale privacy screen and windbreaks. It is attractive year-round, although some complain of the fruit and leaf litter dropped on walkways, patios, and other hardscape surfaces.
Insect Pests, Disease, and Other Plant Problems: Argentine ants are an insect pest. Fruit and leaf litter can be a problem.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Cultivars / Varieties:
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Attributes:
- Genus:
- Elaeocarpus
- Species:
- decipiens
- Family:
- Elaeocarpaceae
- Life Cycle:
- Woody
- Recommended Propagation Strategy:
- Seed
- Stem Cutting
- Country Or Region Of Origin:
- Southern China to Vietnam
- Distribution:
- Southeast Asia, Japan, Korea, and Taiwan
- Wildlife Value:
- Bees and butterflies are attracted to flower nectar. Deer browse the foliage.
- Edibility:
- Fruit is ornamental, not edible.
- Dimensions:
- Height: 30 ft. 0 in. - 40 ft. 0 in.
- Width: 15 ft. 0 in. - 30 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Shrub
- Tree
- Woody Plant Leaf Characteristics:
- Broadleaf Evergreen
- Habit/Form:
- Dense
- Erect
- Rounded
- Growth Rate:
- Medium
- Maintenance:
- Low
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Loam (Silt)
- Sand
- Soil pH:
- Alkaline (>8.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Moist
- Available Space To Plant:
- 24-60 feet
- USDA Plant Hardiness Zone:
- 8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
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Fruit:
- Fruit Color:
- Blue
- Fruit Value To Gardener:
- Showy
- Display/Harvest Time:
- Fall
- Fruit Type:
- Drupe
- Fruit Length:
- < 1 inch
- Fruit Width:
- < 1 inch
- Fruit Description:
- The flowers are followed in the fall by the small oblong bluish purple colored fruits that give this plant its common name.
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Flowers:
- Flower Color:
- Cream/Tan
- Pink
- White
- Flower Value To Gardener:
- Fragrant
- Showy
- Flower Bloom Time:
- Spring
- Summer
- Flower Size:
- < 1 inch
- Flower Description:
- White to cream or pale pink fringed fragrant flowers are hidden under the canopy and point downward. Bloom is in the late spring to early summer.
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Leaves:
- Woody Plant Leaf Characteristics:
- Broadleaf Evergreen
- Leaf Color:
- Brown/Copper
- Green
- Red/Burgundy
- Leaf Value To Gardener:
- Showy
- Deciduous Leaf Fall Color:
- Orange
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Elliptical
- Oblong
- Leaf Margin:
- Entire
- Hairs Present:
- No
- Leaf Description:
- New leaves are bronze turning light to dark glossy green and they turn red as they age. In spring, flushes of bronze growth mature to shiny dark green elliptical leaves. Previous year's leaves turn orange and linger for several months prior to dropping and littering the ground.
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Bark:
- Bark Color:
- Light Gray
- Surface/Attachment:
- Exfoliating
- Smooth
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Stem:
- Stem Is Aromatic:
- No
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Landscape:
- Landscape Location:
- Lawn
- Landscape Theme:
- Butterfly Garden
- Pollinator Garden
- Design Feature:
- Hedge
- Screen/Privacy
- Street Tree
- Attracts:
- Bees
- Butterflies
- Songbirds
- Problems:
- Messy