Plants by mail order since 1984 - over 4,100 plants online today!
Burncoose Nurseries - part of the Caerhays Estate
Nursery & Gardens open: Mon - Sat 08.30 - 16.30 & Sun 10:00 - 16:00
Pop up café: Open Thursday-Saturday 10.30 - 14.30 & Sunday 11.00 - 15.00( weather permitting )
Dear Customers. Please be advised that Thursday 18th of December is the last order date for guaranteed delivery before Christmas. Our hard working despatch teams finish on Friday.

The Nursery will be open as normal during the Christmas period, except Bank Holidays, and will be closing at 1.30pm on Christmas Eve and New Year's Eve.

Thank you to all our customers old and new for their valued support this year.
  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z
  • or use plant finder
  • PERSICARIA affinis
    PERSICARIA affinis
    © Burncoose Nurseries, all pictures for illustrative purposes only.
    <
    PERSICARIA affinis  PERSICARIA affinis  PERSICARIA affinis  PERSICARIA affinis  ALCHEMILLA mollis and PERSICARIA affinis 'Superba'
© Burncoose Nurseries, all pictures for illustrative purposes only. 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.
    >

    PERSICARIA affinis

    Commonly known as Knotweed, Polygonum

    Deep pink
    plant size comparison icon
    1.5 to 2 Litre   - Click to view photo
    Delivery Information
    Available Early Spring 2026
    individually £12.50 each , 3+ £10.00 each 
    Available Early Spring 2026 - Spring according to the Met office is defined as March 1st - May 31st. Therefore early spring is early March to mid-April. This is not a guaranteed date but an estimate and subject to availability.
     
    Full Plant Details - Sun/Soil & other attributes
    • Flowering
      local_florist
      Jan
      local_florist
      Feb
      local_florist
      Mar
      local_florist
      Apr
      local_florist
      May
      local_florist
      Jun
      local_florist
      Jul
      local_florist
      Aug
      local_florist
      Sep
      local_florist
      Oct
      local_florist
      Nov
      local_florist
      Dec
    • Pests & Diseases
      None
    • Place of origin
      Himalayas
    • Resistant to honey fungus
      These plants have little or few problems with honey fungus.
    • Evergreen
      Dark-green leaves 5-15cm (2-6in) long, turning red-bronze in autumn.
    • Shades of pink
      All shades of pink through to Carmine (red)
      Deep pink
    • Cup-shaped
      5mm (¼in) on spikes 5-8cm (2-3in) long
    • Spikes
    • Border
      Suitable for a mixed or herbaceous border
    • Rockery (inc alpine)
    • Fully hardy
    • Height
      25cm (10in)
    • Spread
      60cm (24in)
    • Ground cover
      These plants are typically low growing and spread quickly to inhibit weed growth on areas of bare soil
      Creeping perennial. Produces tight, upright spikes 5-8cm (2-3in) long of small flowers to 5mm (¼in) long. Flowers fade to pale pink.
    • 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)
    • Tolerates all
      Any moist soil
    • Full sun
    • Partial shade
    • Rabbit Resistant
    View Detailed Plant Description

     

    View Planting Tips and Care Advice
    View Customers Also Bought
    PERSICARIA affinis 'Darjeeling Red'

    PERSICARIA affinis 'Darjeeling Red'

    (Polygonum) - Knotweed
    Available from £12.50
    CORNUS canadensis

    CORNUS canadensis

    Creeping dogwood, Bunchberry
    Available from £15.00
    PACHYSANDRA terminalis

    PACHYSANDRA terminalis

    Japanese spurge
    Available from £11.50
    GERANIUM 'Rozanne'

    GERANIUM 'Rozanne'

    Cranesbill
    Available from £13.50

    varieties

    Useful extras...

    Fertilisers & Feeds - Vitax
    A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
    0.9 kg
    £6.00
    Unavailable
    2.5 kg
    £13.00
    Unavailable
    4.5 kg
    £25.00
    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
    £8.50
    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
    £6.50
    arrow_drop_up