Flax

"Many superstitions surround flax. To dream of the plant indicates a happy and prosperous marriage. To dream of spinning flax, however, suggests bad fortune. When it blooms, flax can be cut for use as a protection against witchcraft. It can also be woven with chants and incantations to protect the wearer of the final garment."

Batt, Tanya R., The Fabrics of Fairy Tale: Stories spun from far and wide, Barefoot Books, New York 2000, p. 148