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Marginal Pond Plants

Explore our range of UK-grown marginal plants, selected for their strength, reliability, and ability to thrive in British pond conditions. Marginal plants grow in the shallow edges of ponds, helping to soften the transition between water and garden while providing structure, colour, and seasonal interest. From bold architectural foliage to delicate flowering varieties, these plants play an essential role in creating a natural, well-balanced pond. They also support wildlife by offering shelter for amphibians, insects, and pollinators.

Alongside trusted favourites, we offer a carefully chosen selection of rare and unusual marginal plants, ideal for adding something a little different to your pond. All our plants are grown for quality and establishment, so you can plant with confidence.

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Geum rivale (Water Avens)

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Geum rivale is water avens, a native perennial for damp meadows and bog edges. It flowers in late spring with nodding dusky pink blooms. Appearance...

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Caltha palustris (Marsh Marigold)

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Caltha palustris is marsh marigold, a native marginal that starts the season with bright yellow spring flowers. It’s one of the best early plants f...

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Ranunculus flammula (Lesser Spearwort)

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Ranunculus flammula is lesser spearwort, a UK native buttercup for wet ground and shallow margins. It’s a simple plant that looks right in natural ...

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Lychnis flos-cuculi (Ragged Robin)

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Lychnis flos-cuculi is ragged robin, a classic damp meadow plant with airy pink flowers. It is ideal for natural bog gardens and damp meadow edges ...

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Lysimachia nummularia (Creeping Jenny)

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Lysimachia nummularia is creeping jenny, a fast ground cover for wet soil and pond edges. It’s perfect for trailing over rocks and basket rims, and...

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Mentha aquatica (Water Mint)

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Mentha aquatica is water mint, a UK native that thrives in wet ground. It smells like mint when you brush it, and it produces round clusters of lil...

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Menyanthes trifoliata (Bogbean)

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Menyanthes trifoliata is bogbean, a native plant for pools, ditches, and very wet bog ground. It’s a brilliant choice for pond margins because it f...

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Pontederia cordata (Pickerel Weed)

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Pontederia cordata is pickerel weed, a classic pond-margin plant with upright blue-purple flower spikes in summer. It’s a solid choice when you wan...

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Iris ensata (Japenses Water Iris)

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Iris ensata is Japanese iris, also commonly sold as Iris kaempferi. It is one of the best irises for bog gardens because it loves rich wet soil and...

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Cyperus alternifolius 'Gracillis'

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Cyperus alternifolius 'Gracilis' is a slender form of umbrella sedge grown for its fine stems and airy umbrella heads. It adds vertical lines witho...

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Anagellis tenella (Bog Pimpernel)

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Anagallis tenella is bog pimpernel, now often listed as Lysimachia tenella. It’s a tiny native creeper for acidic, peaty wet ground. Use it when yo...

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Persicaria amphibia (Amphibious Bistort)

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Persicaria amphibia is amphibious bistort. You may also see it listed under the older name Polygonum amphibium. It’s a flexible plant that grows in...

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Persicaria bistorta (Common Bistort)

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Persicaria bistorta is common bistort, also known as adderwort. It’s a clump-forming perennial for damp soils with pink flower spikes in early summ...

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Lysimachia nummularia 'Aurea' (Golden Creeping Jenny)

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Lysimachia nummularia 'Aurea' is golden creeping jenny, a fast ground cover for damp soil and pond edges. It’s often used to trail over rocks and b...

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Juncus effusus var. spiralis (Corkscrew Rush)

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Juncus effusus var. spiralis is corkscrew rush, grown for its twisted stems. It’s a strong marginal for pond shelves and bog gardens, and it gives ...

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Iris louisiana 'Arabian Bayou'

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Iris louisiana 'Arabian Bayou' is a Louisiana iris selected for bold colouring and strong growth in wet soil. It is well suited to UK bog gardens w...

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Filipendula ulmaria (Meadowsweet)

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Filipendula ulmaria is meadowsweet, a native plant for damp ground with creamy flower heads and a strong scent in warm weather. It’s a solid pick f...

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Butomus umbellatus 'Schneeweisschen'

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Butomus umbellatus 'Schneeweisschen' is a white-flowered form of flowering rush. It keeps the same upright habit, but the flowers come out clean wh...

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Acorus gramineus 'Variegatus' (Variegated Slender Sweet Flag)

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Acorus gramineus 'Variegatus' is a variegated sweet flag with cream-striped leaves. It’s a tidy, grassy marginal that brightens pond edges and rais...

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Iris pseudacorus 'Variegata'

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Iris pseudacorus 'Variegata' is a variegated yellow flag iris with cream-striped leaves. It gives strong foliage colour from spring onwards and han...

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Iris versicolor (Blue Flag Iris)

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Iris versicolor is blue flag iris, a North American species that thrives in wet soil and shallow water. It flowers in early summer. Appearance It f...

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Lobelia siphilitica (Blue Lobelia)

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Lobelia siphilitica is a moisture-loving perennial with tall spikes of blue flowers. You will also see it listed as blue lobelia or blue cardinal f...

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Houttuynia cordata 'Chameleon'

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Houttuynia cordata 'Chameleon' is a low, spreading marginal that brings colour even when nothing else is flowering. You might hear it called chamel...

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Juncus inflexus (Hard Rush)

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Juncus inflexus is a UK native rush with upright, blue-green stems. It is usually sold as hard rush or blue-green rush. It is one of those plants t...

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FAQs

What are marginal pond plants?

Marginal pond plants grow around the shallow edges of ponds, with their roots and crowns in or close to the water while their leaves and flowers grow above the surface. They are ideal for planting on pond shelves and help soften the transition between the pond and surrounding garden.

How deep should marginal pond plants be planted?

The correct planting depth varies between species. Some marginals prefer their crowns only just below the water surface, while others tolerate deeper water. Always check the recommended planting depth for the individual plant rather than placing all marginal plants at the same depth.

Can marginal pond plants grow in a wildlife pond?

Yes. Marginal plants are particularly valuable in wildlife ponds because their foliage provides cover around the pond edge and their stems can give emerging aquatic insects a route out of the water. Flowering species can also provide food for bees, hoverflies and other pollinators.

Do marginal pond plants need aquatic baskets?

Marginal plants are commonly grown in aquatic baskets, especially in lined ponds. Baskets make plants easier to position, lift and divide and can help contain vigorous roots. They should normally be filled with suitable aquatic compost or heavy loam rather than ordinary multipurpose compost.

When should I cut back marginal pond plants?

Dead or dying foliage can be removed as plants die back, particularly in autumn, to reduce the amount of decaying material entering the pond. Vigorous marginal plants can also be thinned or divided when they become overcrowded.

What are the best pond plants for a wildlife pond?

The best wildlife pond plants provide a mixture of underwater cover, surface shade, flowering habitat and places for aquatic insects to emerge. A balanced pond can include oxygenating plants, marginal plants and floating-leaved plants such as water lilies. Native species are particularly useful for supporting UK pond wildlife.