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Dark green foliage with small white flowers. Commonly called watercress it is one of the oldest known leaf vegetables. It should only be eaten if grown in a known clean water source.
9cm marginal plants require potting into a larger mesh basket. Place in a pond no deeper than 1/3 maximum recommended planting depth to allow the plants to establish. 1ltr marginal plants do not require repotting, place in pond no deeper than 1/2 maximum recommended planting depth to allow the plants to establish. 3ltr and 5ltr plants do not require repotting, as they are larger more established plants they can be placed up to the maximum recommended depth. There is no need to remove the mesh basket.
This plant will continue to grow through mild winters. It can be cut back vigorously at any time to tidy.
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