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Submerged oxygenator with masses of small star shaped green leaves (British Native) Callitriche palustris spreads across the pond surface forming attractive mats and is available only in the early part of the season.
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Dark green feathery foliage grows loose in the pond. British Native submerged oxygenator
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A good oxygenator but has a very vigorous habit
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Delicate submerged oxygenator with fine serrated foliage that likes to be submerged in still water (British Native). Height 20cm (8"). Lilac flowers held above the water in May - July
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Small grass - like oxygenator with white seedheads Height 15 - 20cm (6" - 8") This oxygenating plant is ideal in size for the patio container pond
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A good oxygenator with a feathery foliage on thin red stems that gives shade and surface cover as well as oxygenating the water.
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Submerged British Native oxygenator (Spiked Milfoil) with olive green feathery foliage that has small yellow/red flowers above water surface and is available mid season onwards.

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Submerged British Native oxygenator with olive green seaweed shaped foliage that grows equally well in partially shaded ponds and is only available in the later part of the season.
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Submerged oxygenator plant with some surface leaf cover and white flowers (British Native) but most of its foliage is submerged underwater. Flowers in May. Available early in the season.

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A strong oxygenating plant (British Native) with hollow, rafting stems that give shade and surface cover and are good users of nutrients in the pond. Also has underwater leaf that oxygenates the water and small white flowers in Summer. Known as Water Cress.
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