Many pigments cannot be extracted from plant material or are unstable when applied to fibres, are not lightfast, or do not bind to the fibre even with the use of mordant or fixatives. As a general rule, plants that were historically successful for dyeing have “Dyer’s” in their common name or “tinctoria” in the Latin name. Dyer’s Chamomile, Anthemis tinctoria and Dyer’s Coreopsis, Coreopsis tinctoria both produce a yellow dye. The roots of Madder, Rubia tinctoria produces a red dye, whilst Japanese Indigo, Persicaria tinctoria and Indigo Indigofera tinctoria unsurprisingly, produce blue dyes.
Right: Coreopsis tinctoria
Below Left: Rubia tinctoria
Below Right: Indigofera tinctoria