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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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Iris louisiana 'Pegaletta'

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Iris louisiana 'Pegaletta' is a Louisiana iris grown for bold early summer flowers and strong, upright leaves. It suits wet ground and shallow pond...

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Lythrum salicaria 'Rosey Gem'

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Lythrum salicaria 'Rosey Gem' is a compact purple loosestrife for pond edges and wet borders. It brings a long run of pink flowers in summer and it...

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Primula japonica 'Apple Blossom'

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Primula japonica 'Apple Blossom' is a candelabra primrose for damp soil and light shade. It flowers in tidy tiers and fills that gap between spring...

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Lobelia cardinalis 'Queen Victoria'

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Lobelia cardinalis 'Queen Victoria' is grown for two things: dark beetroot-coloured leaves and bright scarlet flowers. It’s often called cardinal f...

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Acorus calamus 'Argenteostriatus' (Silver-striped Sweet Flag)

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Acorus calamus 'Argenteostriatus' is a variegated sweet flag with narrow leaves striped cream and green. It’s grown for foliage, not flowers, and i...

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Mimulus tigrinus (Tiger Monkey Flower)

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Mimulus (tigrinus group) is usually sold as tiger monkey flower. It’s grown for bright, spotted blooms and it likes cool, damp conditions. In a bog...

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Myosotis scorpioides 'Semperflorens'

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Myosotis scorpioides 'Semperflorens' is water forget-me-not, selected for a long flowering season. It’s a simple plant, but it earns its place by t...

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Phragmites australis 'Variegatus' (Variegated Common Reed)

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Phragmites australis 'Variegatus' is a variegated common reed with cream-striped leaves. It gives you height and screening fast, and it stays usefu...

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Oenanthe fistulosa 'Flamingo' (Variegated Water Dropwort)

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Oenanthe fistulosa ‘Flamingo’, commonly known as Variegated Water Dropwort, is a moisture-loving perennial grown for its colourful foliage and soft...

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Iris laevigata 'Mottled Blue'

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Iris laevigata 'Mottled Blue' is a Japanese water iris for wet soil and pond margins. It’s a good choice if you want a true marginal iris that cope...

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Lobelia cardinalis (Cardinal Flower)

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Lobelia cardinalis is cardinal flower, known for tall spikes of scarlet blooms in late summer. It likes wet ground and brings colour when many bog ...

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Iris ensata 'Eileen's Dream'

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Iris ensata 'Eileen's Dream' is a Japanese iris grown for large early summer flowers and elegant foliage. You may see Japanese iris offered under t...

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Mimulus cardinalis (Scarlet Monkey Flower)

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Mimulus cardinalis is scarlet monkey flower, a moisture-loving plant with bright tubular blooms. It’s a good pick for bog edges where soil stays da...

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Carex muskingumensis 'Oehme'

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Carex muskingumensis 'Oehme' is a palm sedge with variegated leaves. It’s grown for its tidy, upright look and it copes well with damp soil. In bog...

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Cyperus fuscus (Brown Galingale)

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Cyperus fuscus is brown galingale, a small sedge-like plant for wet mud and shallow margins. It’s usually used in natural ponds and wildlife margin...

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Cyperus papyrus 'Nanus' (Dwarf Papyrus)

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Cyperus papyrus 'Nanus' is a dwarf papyrus, a compact version of the classic papyrus look. It gives you umbrella heads on upright stems and works w...

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Orontium aquaticum (Golden Club)

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Orontium aquaticum is golden club, a North American marginal with unusual yellow flower spikes. It’s a great choice if you want something different...

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Camassia leichtlinii (Great Camas)

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Camassia leichtlinii is great camas, a spring-flowering bulb that likes moisture while it grows. It’s a strong choice near bog gardens because it e...

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Nasturtium officinale (Watercress)

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Nasturtium officinale is watercress, a fast-growing edible that likes cool, clean water. In garden ponds it’s best treated as a contained marginal ...

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Hypericum elodes (Marsh St John's-wort)

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Hypericum elodes is marsh St John's-wort, a UK native for wet ground. It is a good plant for softening margins because it creeps, flowers, and sits...

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Lythrum salicaria 'Robert'

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Lythrum salicaria 'Robert' is a purple loosestrife cultivar chosen for its flower colour and garden habit. It gives you tall summer flower spikes a...

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Mimulus ringens (Lavender Musk)

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Mimulus ringens is lavender musk, a wetland plant with purple flowers in summer. It’s a good option if you want a native-style marginal that fits i...

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Monarda didyma 'Bee-Lieve'

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Monarda didyma 'Bee-Lieve' is a bee balm with bright summer flowers and scented leaves. It suits moist soil and brings a lot of pollinator activity...

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Ligularia przewalskii (Przewalski's Golden Ray)

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Ligularia przewalskii is Przewalski's golden ray, grown for tall flower spikes and bold foliage. It likes moisture and it works well on the damp ed...

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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.