William Morris Seaweed Single Duvet Cover in Black This distinctive design features a sinuous free-flowing pattern, capturing the gentle underwater movement of plants. Originally designed by J.H.Dearle in 1901, the intricate pattern is printed on smooth 300 thread count cotton percale in a moody palette of black and sepia tones with rich dark red accents. A small spot print works as the perfect co-ordinate and the range is accessorised with the Jura check wool blanket and a linen blend cushion embellished with a striking black embroidered tree motif.