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Ludwigia helminthorrhiza is a very
conspicuous plant. It is usually kept as a floating plant in the aquarium
where it develops air-filled 'pontoon' roots which help balancing and
orientating the plant at the water surface. Ludwigia helminthorrhiza
also develops normal roots which is very ornamental and, in addition, a good
playing substrate for many fishes. The plant can grow quite big and as most other
floating plants it most suitable for open aquaria. Ludwigia
helminthorrhiza requires very high light to thrive well but if this
requirement is met it produces very beautiful red-coloured leaves. The leaves
often turn yellowish at nutrient deficiency and it is especially sensitive to
micro nutrient deficiency. It is very temperature tolerant and it is useful
as a summer pond plant in the temperate gardens, too
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