probably the easiest of all the dyes is turmeric. especially in india, where it is so abundant. turmeric is one of the few dyes that you can prepare in a cold bath - no energy is needed to heat the dye stuff. we simply put 100 grams of turmeric powder in this bucket of cold water. used rubber bands to create resist patterns and then dropped our cloth inside. we left our fabric overnight, just to soak in the color. no mordant used on this cotton, which was actually an old veshti!