The root of the madder plant produced a red colour, woad offered blue and yellow was derived from weld. Plants were soaked in hot water and wool was immersed in the dye bath. Stale urine may have ...

madder red, and plant-dye yellow. The highly-patterned knitwear became known world wide after the Prince of Wales wore a jumper while playing golf at St. Andrews in 1922. It continues to influence ...