dyeing tutorials Natural Dyeing is all the rage! Learn how to Naturally Dye Yarn with Black Walnuts. Black walnuts produce a lovely, warm brown yarn. No mordant needed. Easy Yarn Crafts, Fibre And Fabric, Spinning Yarn, Spinning Wheels, How To Dye Fabric, Hand Dyed Yarn, Dyeing Yarn, Dyeing Fabric, Crochet Yarn