Isatis tinctoria (sopra) e Isatis Indigotica (sotto) - Confronto - Stagione 2016
Isatis Indigofera also known as Chinese Woad growing in my garden Italy 2017
Before Indigo was used, "woad" (Isatis tinctoria) was used. "Woad is an old color. A conversation with history. A natural dye. An ugly plant. Locked in green leaves, compounds that break into pigments of blue.
extracting pigment from woad leaves. This summer I hopefully will have nice woad plants in my garden.
Isatis tinctoria L. (Pastel des teinturiers) WOAD for blue dye
Considered noxious in Western United States where propagation is prohibited by law.