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ARISTOLOCHIA sempervirens
Commonly known as Birthwort
(syn. Aristolochia altissima) - Evergreen climber with glossy heart-shaped leaves. Pitcher-shaped dullish-red flowers with a bright yellow throat
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EvergreenLeaves to 10cm (4in) long with slender points
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RedDull purple-red
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Yellow
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Height3m (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-clingingLax-stemmed climber. Flowers are produced singly in the leaf axils
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Hardy - average winterHardy through most of the UK apart from inland valleys, at altitude and central/northerly locations. May suffer foliage damage and stem dieback in harsh winters in cold gardens. Plant can withstand temperatures down to -10°C (14°F)Borderline
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Full sun
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Partial shade
ARISTOLOCHIA sempervirens
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Additional FeaturesGood to knowIn hard winters plant may die back to the ground but usually reappears the following springPests & DiseasesTrouble free
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HardinessFully hardy
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Pruning groupPruning 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 InterestSummer
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Soil ConditionsFertile well drained soil
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Toxic - Category B - CAUTIONToxic if eatenPeople and pets, i.e. dogs, cats, rabbits, rodents, notably dogs
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Useful extras...
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
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
Garden Goodies
Slate Tie-on Plant Labels
Hand made in Cornwall, these delightful natural slate labels are perfect for pots.
Comes with chalk pen. Pack of 5
Only £10.00
Garden Goodies
Sisal Twine
2ply sisal garden twine - 250 grams
Only £4.50
Garden Goodies
Brown / Green Twine
Natural garden twine, 500 grams, 350 metres.
Ideal in the garden or the home.
2 options from £5.00