For some, rowan was the tree of the fairies. It was wise to keep a rowan staff handy at midsummer as an escape route, should someone become trapped in a fairy ring...
A legend says that Caesar’s troops introduced the Roman nettle into Britain because they thought that they would need to flail themselves with nettles to keep warm.
Both are indicating that you will get shades of yellow, orange, brown, green and even pink or purple if an additional treatment is applied before dyeing.