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GARDENIA augusta 'Crown Jewel'
Commonly known as Cape jasmine
Double white perfumed flowers. Frost hardy
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
A good subject for a container in areas with cold winters. Can be moved into protection. -
Pests & Diseases
Under glass - whiteflies, stem and root mealybugs, grey mould -
Place of origin
China, Taiwan, Japan -
EvergreenOvate, elliptic or lance-shaped, glossy, deep green leaves to 10cm (4in) or more long usually carried in whorls of 3.
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White
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DoubleMulti rows of petals, no stamen showing
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Saucer-shapedTo 8cm (3in) across
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BorderSuitable for a warm border
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Greenhouse / conservatoryNot the sort of plants to be grown outside where there are likely to be frosts. These plants need to be grown in a conservatory or cool greenhouse or at least brought inside for the winterUnder glass use ericaceous compost in full light. Keep barely moist in winter. Might require restrictive pruning
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Patio / pot plants
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Suitable for small gardens
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Frost hardy (down to -5)
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Entire
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Elliptic
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Height
1m (39in) -
Spread
75cm (30in) -
Medium shrubTypically grow to around 4-6 feet in height
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Pruning group 6
Suitable for: Evergreen shrubs or climbers that need little to no pruning.
Action: Trim back shoots that spoil symmetry and to fit available space.
When: Annually after flowering if on previous year's growth, or in later Winter or Spring if flowering on current year's growth, or as requires.
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Half hardy - unheated greenhouse / mild winter
Hardy in coastal and relatively mild parts of the UK except in severe winters and a risk from sudden (early) frosts. May be hardy elsewhere with wall shelter or good micro-climate. Likely to be damaged or killed in cold winters. Plant can withstand temperatures down to -5°C (23°F) -
Scented flowers
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Autumn Seasonal Interest
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Summer Seasonal Interest
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Fertile moist well-drained soilHumus-rich.
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Neutral to acid soil
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Partial shade
Or light, dappled shade -
Mature Size1m (39in)
75cm (30in)
View Planting Tips and Care Advice
Gardenia - Care Guide