Weld has been used as early as the Roman times for dyeing fabrics shades of yellow. When over-dyed with woad, it produces Lincoln Green.
Harvest the leaves and flower stalks while it is flowering and the plant is still green. The leaves of nonflowering plants may also be used, but yield a less bright color. Color is most concentrated in the leaves, flowers, and seed pods.
Plant weld on 6” centers in full sun in average to poor soils. Height 2-4’ in flower. Leaves of 12 plants or tops of 6 flowering plants dye 4oz of wool. Biennial.
minimum 50 seeds
Photo of weld dyed yarn by Fran Rushworth of Rich & Strange Silk and Wool Work. Check out her blog on dying with weld here.