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:
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Position: Marginal pond edges / shallow water (up to 30cm deep)
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Flowers: Summer (June – August)
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Height: 30–90cm
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Spread: 60cm+
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Native status: UK native, wildlife friendly
Why Choose Persicaria amphibia?
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Versatile aquatic & marginal plant
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Supports pond biodiversity
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Adds colour and structure to ponds & wetlands
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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.