Woad
Isatis tinctoria
A biennial crop historically cultivated for the blue dye extracted from its leaves.
Family
Brassicaceae
Soil types
Well-drained loamy or chalky soils.
Isatis tinctoria
A biennial crop historically cultivated for the blue dye extracted from its leaves.
Family
Brassicaceae
Well-drained loamy or chalky soils.