Persicaria amphibia Polygonum amphibium

Persicaria amphibia Polygonum amphibium

Price range: £3.49 through £29.95

pay in interest free monthly instalments: 9 x £0.39

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Persicaria amphibia (Polygonum amphibium) – Water Smartweed / Amphibious Bistort

Add striking greenery and natural beauty to your pond or wetland garden with Persicaria amphibia, also known as Polygonum amphibium, Water Smartweed, or Amphibious Bistort. This versatile UK-native aquatic perennial thrives in both shallow water and damp soil, making it an excellent choice for wildlife-friendly landscapes.

Dual Growth Habit – Can be grown as a marginal pond plant with floating leaves, or as a terrestrial plant in damp ground, providing year-round interest.

Attractive Blooms – Produces dense clusters of vibrant pink flower spikes in summer, which attract pollinators such as bees, butterflies, and other beneficial insects.

Wildlife Friendly – Floating leaves create shade and shelter for pond life, while flowers provide nectar for pollinators.

Native to the UK – A hardy, low-maintenance plant well-suited to British gardens and natural pond environments.

Easy to Grow – Thrives in full sun or partial shade, in water depths up to 30cm, or in consistently damp soil along pond margins.

Plant Information:

  • Position: Marginal pond edges / shallow water (up to 30cm deep)

  • Flowers: Summer (June – August)

  • Height: 30–90cm

  • Spread: 60cm+

  • Native status: UK native, wildlife friendly

Why Choose Persicaria amphibia?

  • Versatile aquatic & marginal plant

  • Supports pond biodiversity

  • Adds colour and structure to ponds & wetlands

  • Hardy and reliable in the UK climate

Supplied as a healthy, established plant – ready for planting directly into your pond basket or damp garden soil. Fast UK delivery available.

PLANT TYPE

Marginal

FLOWER COLOUR

Pink

SUN/SHADE

Full sun to part shade

NATIVE

Native

SEASON

Spring, Summer

HEIGHT MIN

10

HEIGHT MAX

30

DEPTH MIN

0

DEPTH MAX

80

SPREAD MIN

0

SPREAD MAX

0

FLOWER TIME

Jul to Sep

POT SIZE

1 Litre, 1 Litre (pack of 3), 10 x Plug bare Root, 3 Litres, 3 No. Medium Bare Root, 3 No. Small Bare Root, 9 cm (pack of 3), 9cm, Large Bare Root, Medium Bare Root, Plug Bare Root, Small Bare Root