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PERSICARIA alpina
Commonly known as Alpine knotweed
(syn. P. polymorpha) - tall growing with tall stems or plumes of creamy-white flowers
individually £12.50 each , 3+ £10.00 each
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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Good to know
Also known as Polygonum alpinum acc. to RHS in the AtoZ (height and spread to 1m) and also Persicaria polymorpha by the RHS online (height and spread 2m x 1.5m) -
Pests & Diseases
None -
Place of origin
Eurasia -
Resistant to honey fungusThese plants have little or few problems with honey fungus.
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DeciduousLinear to narrowly lance-shaped leaves to 15cm (6in) long on stalks 1cm (½in) long
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White
Creamy white -
BorderSuitable for a mixed or herbaceous border
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Fully hardy
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Height
To 1.8m (6ft) -
Spread
To 1.5m (5ft)
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Bulb/Corm or rhizomatous perennialErect, clump-forming rhizomatous perennial, many branched from the middle upwards. Produces spikes of cup- to funnel-shaped flowers to 15cm (6in) long
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HerbaceousEarly in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
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Hardy - very cold winter
Hardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°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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Rabbit Resistant
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Mature Sizeto 1.8m (6ft)
to 1.5m (5ft)
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