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PASSIFLORA caerulea
Commonly known as Blue passion flower
Hardy blue passion flower
Further Reading....
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EvergreenRich-green leaves to 10cm (4in) long, divided into, usually, 5 oblong lobes.
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Striped, Veined or Multicoloured
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WhiteSometimes pink tinged with purple-, blue-, white-zoned coronas. -
Height10m (33ft) -
Spread3m (10ft)
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ClimberSome of these climbing plants will need trellis or wire supports if grown on walls or fences. Other grow aerial roots and are self-clingingFast-growing tendril climber with moderately branching, slender, 4-angled, grooved stems. Flowers are followed by ornamental, ovoid, orange-yellow fruit to 6cm (2½in) long
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Half hardy - unheated greenhouse / mild winterHardy 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) -
Full sun -
Partial shade
PASSIFLORA caerulea
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Additional Features
Good to knowSuitable for growing on a trellis in a sheltered, sunny position or in a large container
Pests & DiseasesRed spider mites, whiteflies, mealybugs, scale insects, cucumber mosaic virus under glass
Place of originCentral and west South AmericaResistant to honey fungusThese plants have little or few problems with honey fungus. -
Flower ShapeBowl-shaped7-10cm (3-4in) across
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Garden Location/ConditionsTown garden
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HardinessFrost hardy (down to -5)
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Pruning group
Pruning group 6Suitable 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.
Pruning group 8Suitable for: Wall trained shrubs and less vigorous climbers.
Action: For climbers 'spur prune' by cutting back 3-4 buds of the permanent framework. For wall trained shrubs cut back flowered shoots to within 2-4 buds of permanent framework.
When: Annually after flowers if on previous year's growth, or in late Winter or Spring if on current year's growth.
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Seasonal InterestAutumnSummer
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Soil ConditionsFertile moist well-drained soilModerately fertile
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Passiflora - Care Guide
Buy Varieties of PASSIFLORA caerulea
PASSIFLORA caerulea 'Constance Elliot'
Passion flower
striking ivory white flowers, hardy
Gift-wrapping available
£16.00 each
PASSIFLORA caerulea 'Rubra'
Passion flower
purple-pink flowers.
Useful extras...
Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00
Fertilisers & Feeds - Empathy
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00
Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00
Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
3 options from £3.00
Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries.
It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50
Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50
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