Himalayan Rhubarb is a traditional natural dye from the Himalayan mountains between India and Bhutan. The plant grows in altitudes from 3-5000 meters and yields a deep golden yellow color with an alum mordant. Shifts in pH will create more yellow or nearly brick red colors. The dye is aromatic and earthy smelling and makes a wonderful Bright Olive green when combined with Saxon Blue in the dye pot. Use it at 1-10% on the weight of the fiber and shift its pH with cream of tartar or soda ash.
100 grams of Himalayan Rhubarb will dye approximately 1 kg (2.2 lbs) of fiber.
Aquarelle Liquid Natural Dyes Kit (includes Himalayan Rhubarb)