We are offering indigo powder indigo (indigofera tinctoria) is a shrub grows between 1m - 2m high, flowering during july-september, it is a frost tender plant of the tropics and found in temperate areas of india which requires plenty of light. It�s a member of the legume family, fabaceae and third largest family of flowering plants, indigofera tinctoria can biologically fix nitrogen, annually enriching the soil. The powder is obtained from the dry leaves of indigofera tinctoria plant.