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A picture of a Creeping Knotweed

Creeping Knotweed

Persicaria capitata

Also known as

Pinkhead Smartweed, Japanese Knotweed, Pink-Head Knotweed, Pink-Head Persicaria

Persicaria capitata (Flower) by Ixitixel (CC-BY-SA-3.0)

Full Sun
Moderate watering


USDA zone


Minimum temperature

Expected size






  • spring
  • summer
  • autumn
  • winter

This plant has a strong fragrance

More images of Creeping Knotweed

A close up of a Persicaria capitata flower
A photo of Creeping Knotweed
A photo of Creeping Knotweed
A close up of a pink Persicaria capitata flower and some red leaves
Persicaria capitata, Austin's Ferry, Tasmania, Australia

Creeping Knotweed Overview

Persicaria capitata is an evergreen perennial plant from the Polygonaceae family. It has a creeping habit, forming multiple stems that get woody at the base. It roots easily and doesn't typically exceed 15cm in height. It has both ornamental and medical value. Flowers are pink and unpleasantly scented. This plant is commonly known by a range of names including Creeping Knotweed, Pink Headed Persicaria, Pink Bobbles and Japanese Knotweed amongst others. The common name Japanese knotweed is shared with another plant, Reynoutria japonica.

How to propagate Creeping Knotweed


Seed or division in autumn or spring, climbers only by semi-ripe cuttings in summer.



Special features of Creeping Knotweed

Ground cover

Attractive flowers

Other uses of Creeping Knotweed


Category 1b

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