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CITRUS trifoliata
Commonly known as Japanese bitter orange
(formerly Ponicirus trifolata) - green stems armed with stout spines. Trifoliate leaves and white strongly scented flowers like Orange blossom
Full Plant Details - Sun/Soil & other attributes - Click to close
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Floweringlocal_floristJanlocal_floristFeblocal_floristMarlocal_floristAprlocal_floristMaylocal_floristJunlocal_floristJullocal_floristAuglocal_floristSeplocal_floristOctlocal_floristNovlocal_floristDec
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Good to know
Intoduced into UK by Robert Fortune, Scottish plant hunter, in 1850. Can flower in late spring and again in autumn. -
Pests & Diseases
None -
Place of origin
Northern China, Korea -
DeciduousAlternate, 3-palmate leaves, 2.5-6cm (1-2½in) long comprise 3 obovate, dark green leaflets, turning yellow in autumn
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White
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Cup-shapedCup-shaped, then saucer-shaped flowers 5cm (2in) across
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Half hardy (down to 0)
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Palmate
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Entire
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Obovate
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Height
5m (16ft) -
Spread
5m (16ft) -
Medium shrubTypically grow to around 4-6 feet in heightOr small tree. Flowers on second-year wood. Produces solitary flowers followed by orange-like, inedible, green then orange fruit, 4cm (1½in) across
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Pruning group 1
Suitable for: Deciduous and evergreen trees, and some deciduous shrubs.
Pruning: Minimal pruning required. Prune wayward or crossing branches to maintain a healthy framework.
When: When dormant in the late winter/early spring. Some in the summer/autumn to prevent bleeding of sap.
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Tender - cool or frost free greenhouse
Tolerant of low temperatures, but not surviving being frozen. Except in frost-free inner-city areas or coastal extremities requires glasshouse conditions. Plant can withstand temperatures down to 1°C (34°F) -
Autumn Seasonal Interest
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Spring Seasonal Interest
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Summer Seasonal Interest
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Winter Seasonal Interest
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Fertile well drained soil
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Full sun
Shelter from cold winds -
skin irritant with sunlight
(People & Pets) -
Rounded to broadly spreading
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Rabbit Resistant
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Mature Size5m (16ft)
5m (16ft)
View Planting Tips and Care Advice
Citrus Trees - Care Guide