Ha ha, no problem! The only reason I know is because I live in California which produces 99% of the U.S.'s and 2/3's of the world's commercial walnuts. I always remember driving through the Central Valley as a kid looking at the "funny white tree trunks on black stumps." They graft English Walnuts onto our native Black Walnut rootstock.
I believe it seeds very easy, before you know it, it will take over LOL Valeriania officinalis would be what your looking for. You don’t want to dig the roots until the second year. Currently my home smells of valerian, hope my party guests tomorrow don't mind !
Also cats and rats realy love the root so grow it somewhere safe:)
Good morning Aliza, Yes... she is shaggy and beautiful. She is one of three purebred Scottish Highlands that I have. They look kinda wild to most people, but really they are a super mellow breed. Have a good day, John