Indigo dye comes from several plants, but the genus Indigofera contains one of the original and best
Indigo dye comes from several plants, but the genus Indigofera contains one of the original and best-known ones, Indigofera tinctoria. I bought seeds claimed to be this species several years ago, but it became clear upon blooming that it was a related species, Indigofera suffruticosa.While the true origins of tinctoria have been lost due to the incredible length of time it’s been cultivated by humans, suffruticosa is native to the region around central america and has also been used to produce indigo dye. Native people (such as the Mayans and Aztecs) used it to make pigments as early as the 7th century continuing into colonial times. -- source link
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