Hedge parsley is an invasive weed that can grow in a variety of conditions. It is a nuisance not only for its vigorous growth, but also because it produces bur-like seeds that stick to clothing and animal fur. Hedge parsley (Torilis arvensis), also known as spreading hedge parsley, is a weed that is native to southern Europe and thrives in many parts of the U.S. It tends to grow in pastures and fields, on the edges of forests, and in disturbed sites, like roadsides and gardens.