Historically, herbal dyes were used for most domestic clothing. Dyes created at home were often not very colorfast, so overdyeing and redyeing was normal
Blue Dye in History
Red cabbage - dye samples - Sew Historically
Medieval colours. This is the palette of natural, plant sourced
Natural Dye: Experiments and Results
Cochineal, Saffron & Woad Photos
Unit - Chemistry of Textiles: Dyeing Fibres
Natural Dyes: Use in Large-Scale Companies - Yana Dobreva
The Guado: History of a Natural Pigment - Guado Urbino
French General's Woad Workshop - Make
Slow Dyeing with Woad – WOOLLY ORIGINALS
Cochineal, Saffron & Woad Photos
Natural Dyes for Fabric: Natural Ways to Dye Fabric in Many Colors
What colour is the dye 'woad'? - Quora
Natural Dyes as Medicinal Color