Green for Wool

Dye it yellow as mentioned above, and then let the dye drain out of the yarn. When it has drained, draw or lay the yarn in blue indigo dye until it is green enough. If the yarn has been dried after being dyed yellow, you must again draw it through alum water and let it drain. And thus it must be drawn wet through the blue dye while it is still warm.

Citation Type  Fabric Dye Recipe
Citation Year 1677