Description British native sedge with long triangular shaped blue green leaves with black flower heads in early summer. It is the tallest of the british sedge and quite vigorous but can be contained in a pots or baskets. Very good for stabilizing banks in windy positions. Planting depth up to 20cm. Supplied in a 1 litre pot Photo Credit: https://commons.wikimedia.org/wiki/File:CarexRiparia1.jpg
