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PERSICARIA amplexicaulis 'Blackfield'
Commonly known as Knotweed, Polygonum
Slender flowers in deep red-black. A smouldering beauty
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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Pests & Diseases
None -
Place of origin
Garden origin -
Resistant to honey fungusThese plants have little or few problems with honey fungus.
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Semi-evergreenKeeps some of its foliage all year, and will drop some leaves as well.Ovate, lance-shaped, pointed, mid-green leaves to 25cm (10in) long, slightly puckered.
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Red
Deep red black -
Bell/LanternNarrowly bell-shaped 5mm (¼in) long
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SpikesLong-stalked narrow spikes to 10cm (4in) long
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BorderSuitable for a mixed or herbaceous border
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Fully hardy
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Height
1.2m (4ft) -
Spread
1.2m (4ft) -
HerbaceousEarly in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.Robust, clump-forming perennial
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Hardy - cold winter
Hardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F) -
Summer Seasonal Interest
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Tolerates allAny moist soil.
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Full sun
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Partial shade
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Bee friendly
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Rabbit Resistant
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Mature Size1.2m (4ft)
1.2m (4ft)
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