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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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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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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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Myosotis scorpioides (Water Forget-me-not)

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Myosotis scorpioides is water forget-me-not, a classic pond-margin plant with blue flowers. It’s simple, reliable, and great for softening edges wh...

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Lythrum salicaria (Purple Loosestrife)

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Lythrum salicaria is purple loosestrife, a wetland perennial with tall spikes of magenta-purple flowers in summer. It’s one of the best plants for ...

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Lobelia vedrariensis (Purple Lobelia)

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Lobelia vedrariensis is a bog-loving lobelia grown for purple flowers and a long season in damp soil. It’s a good choice when you want a slimmer, n...

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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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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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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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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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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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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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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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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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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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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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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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Equisetum hyemale (Dutch Rush)

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Equisetum hyemale is rough horsetail, also sold as Dutch rush. It’s a tough marginal that gives clean vertical lines and stays interesting for most...

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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 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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Oenanthe javanica 'Flamingo'

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Oenanthe javanica 'Flamingo' is variegated water celery with pink-tinted new growth. It’s a bright foliage plant for the pond edge and bog gardens,...

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Iris laevigata 'Snowdrift'

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Iris laevigata 'Snowdrift' is a Japanese water iris with white flowers for pond margins and wet bog soil. It’s a good pick when you want a lighter ...

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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.