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CALLISTEMON sieberi
Commonly known as Alpine bottlebrush
(pityoides) - This is the hardiest species with narrow leaves and pale yellow flowers in short spikes
Plant Details
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Floweringlocal_floristJanlocal_floristFeblocal_floristMarlocal_floristAprlocal_floristMaylocal_floristJunlocal_floristJullocal_floristAuglocal_floristSeplocal_floristOctlocal_floristNovlocal_floristDec
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Pests & Diseases
None -
Place of origin
Australia (Queensland to Victoria) -
Resistant to honey fungusThese plants have little or few problems with honey fungus.
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EvergreenCrowded, rigid, dark-green leaves 4cm (1½in) long with hard points.
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Yellow
Pale yellow -
Spikes4-15cm (1½-6in) long
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Fully hardyBorderline
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Entire
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Linear
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Height
1-2m (3-6½ft) -
Spread
1-2m (3-6½ft) -
Medium shrubTypically grow to around 4-6 feet in heightSpreading to semi-erect shrub
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Hardy - average winter
Hardy 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 -
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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Mature Size1-2m (3-6½ft)
1-2m (3-6½ft)
Planting Tips and Care Advice
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Garden Location/Conditions
Australian / New ZealandBorderSuitable for a sheltered, sunny border
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Pruning group
Pruning group 5
Suitable for: Evergreen shrubs that require minimal pruning.
Action: Trim or lightly cut back shoots that spoil symmetry. Deadhead regularly.
When: Annually after flowering.
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Soil Conditions
Neutral to acid soil
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Sun Requirements
Full sun
Callistemon - Growing Guide