• Persicaria affinis &
  • Persicaria affinis &
1 3

Persicaria affinis 'Superba'

Creeping knotweed

£14.99
£14.99

3 litre pot

A spreading carpet of pink and red flower spikes, perfect for long-lasting colour at the front of a border.
  • Long flowering
  • Wildlife-friendly
  • Good ground cover
  • Autumn foliage colour

  • Aspect

    Full sun to partial shade

  • Hardiness

    Fully hardy throughout the UK

  • Flowers

    July - October

  • Soil type

    Loam, clay, chalk

Persicaria affinis &
Persicaria affinis &

  • Why we like this plant

    Ideal for softening the edges of borders or filling tricky gaps, Persicaria affinis 'Superba' brings colour and texture for months on end. Its creeping habit and tolerance for a range of soils make it a reliable performer in many garden settings.

  • About this plant

    A tough, ground-hugging perennial with a long season of interest, Persicaria affinis 'Superba' forms a spreading mat of foliage topped with pink flower spikes that deepen to rich red as they age.

  • Key features

    • Low-growing, mat-forming habit
    • Pink to red flower spikes from summer into autumn
    • Attractive reddish foliage in cooler months
    • Excellent ground cover for sun or partial shade
    • Good weed suppressant once established

  • Eventual height and
    spread

    Height: 20–30cm | Spread: 60–90cm

  • Growth
    habit

    Spreading ground cover

  • Moisture

    Moist but well-drained

  • Position in
    the Garden

    Front of border, edging, underplanting

Planting guide

Plant in spring or autumn in well-prepared soil. Space plants 30–45cm apart to allow for spread. Water well until established.

Care tips

Shear back after flowering to tidy and encourage fresh growth. Divide every few years to rejuvenate and maintain vigour.

Winter care

Cut back any tired foliage in late winter or early spring to make way for new growth. Mulch lightly in colder regions.