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CLETHRA tomentosa 'Cottondale'
Commonly known as Summer sweet, Sweet pepper bush, White alder
US species with long tapering racemes of flowers. Suckers are produced from the base of the plant to create a spreading clump
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
Trouble free -
Place of origin
USA. Garden origin -
Deciduousglossy, dark green leaves 8-10cm (3-4in) long turning yellow in autumn
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White
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Bell/LanternBell-shaped flowers to 1cm (½in) across
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Racemes
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Fully hardy
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Serrulate
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Lanceolate
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Oblong
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Height
2m (6½ft) -
Spread
2m (6½ft) -
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) -
Scented flowers
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Autumn Seasonal Interest
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Summer Seasonal Interest
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Bee friendly
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Butterfly friendly
Planting Tips and Care Advice
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Pruning group
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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Sun Requirements
Full sun
Partial shade
Clethra - Growing Guide