Ground dried roots of Rubia cordifolia, also called Indian Madder. A very close cousin to regular Madder. Use on protein or cellulose fibres. Pre-mordanting recommended. Produces dramatic reds, crimson and coral/salmon. Basically follow a recipe for regular Madder. Use at 50-100% WOF for medium shades. TO USE: simmer in water below 185°F for 30 minutes. Cool overnight, then repeat simmer and strain. Add more water and enter pre-mordanted fibre. Hold below 158°F for one hour. Higher temperatures produce browns. Light and washfastness: excellent