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  • PERSICARIA alpina
    © Burncoose Nurseries, all pictures for illustrative purposes only.
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    PERSICARIA alpina  PERSICARIA alpina  PERSICARIA alpina  PERSICARIA alpina  EUPHORBIA x pasteurii and PERSICARIA
© Burncoose Nurseries, all pictures for illustrative purposes only. Monarda ‘Prairie Night’, Eryngium ‘Picos Blue’, Argyranthemum ‘Chelsea Girl’, Blue Phlox and Persicaria
© Burncoose Nurseries, all pictures for illustrative purposes only. Violet Phlox, Miscanthus sinensis, Persicaria ampexicaulis, Buddleia davidii and Persicaria alpina
© Burncoose Nurseries, all pictures for illustrative purposes only. Violet Phlox, Miscanthus sinensis, Persicaria ampexicaulis, Buddleia davidii, Persicaria alpina, Sedum ‘Brilliant’ and Salvia ‘Embers Wish’
© Burncoose Nurseries, all pictures for illustrative purposes only.
    >

    PERSICARIA alpina

    Commonly known as Alpine knotweed

    (syn. P. polymorpha) - tall growing with tall stems or plumes of creamy-white flowers
    plant size comparison icon
    1.5 to 2 Litre
    Delivery Information
    Available again FEB 2025
    individually £12.50 each , 3+ £10.00 each 
    Available again FEB 2025 - fresh stock in late winter
     
    Plant Details
    • Flowering
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      Jan
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      Feb
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      Mar
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      Apr
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      May
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      Jun
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      Jul
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      Aug
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      Sep
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      Oct
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      Nov
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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 fungus
      These plants have little or few problems with honey fungus.
    • Deciduous
      Linear to narrowly lance-shaped leaves to 15cm (6in) long on stalks 1cm (½in) long
    • White
      Creamy white
    • Fully hardy
    • Height
      To 1.8m (6ft)
    • Spread
      To 1.5m (5ft)
    • Bulb/Corm or rhizomatous perennial
      Erect, clump-forming rhizomatous perennial, many branched from the middle upwards. Produces spikes of cup- to funnel-shaped flowers to 15cm (6in) long
    • Herbaceous
      Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
    • 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
    • Rabbit Resistant
    • Mature Size
      to 1.8m (6ft)
      bulb/corm - guide for size not form Average Person
        to 1.5m (5ft)
       
    Planting Tips and Care Advice
    • Garden Location/Conditions
      Border
      Suitable for a mixed or herbaceous border
    • Soil Conditions
      Tolerates all
      Any moist soil
    • Sun Requirements
      Full sun
      Partial shade
    Persicaria - Growing Guide
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    Useful extras...

    Fertilisers & Feeds - Empathy
    AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
    1ltr
    £8.00
    Vermin & Pest Control
    Slug killer blue mini pellets are easy to use and give effective control of slugs and snails. Ideal in garden, conservatory or greenhouse.
    800g - Free c&p
    £6.50
    Fertilisers & Feeds - Empathy
    Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
    Small - 60g sachet
    £3.00
    Medium - 150gm sachet - inc c&p
    £6.00
    Large - 360gram sachet - inc c&p
    £12.00
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