It has many medicinal values and is a great ornamental for most homes and is great for attracting birds. The wood is good for fence posts, ships, and walking sticks. Rowan bark will dye fabric grey. Walnut is regarded as a sinister tree. It kills any vegetation near it.
Walnut trees seem to especially dislike oaks.
In Bologna it was believed that witches held their meeting under a walnut tree on Midsummer's Eve. European folklore also tells us that a heavy crop of walnuts indicates a harsh winter. To dream of walnuts implies unfaithfulness in relationships. The Goths yielded a black dye from the shells of the nuts which was also used as a punishment. There are at least 500 willow species.