A known carcinogen, creosote attaches to tuberous vegetable roots and injures or kills vegetables. Old railroad ties--those lacking strong creosote odor and a sticky, black substance--are safe for vegetable gardens. Adding a plastic liner will further protect the vegetables' roots.
About this Author
A freelance writer, Judy Wolfe has owned Prose for the Pros, a freelance writing business, since 2006. She's been an inveterate traveler since 1961 and draws on her travel experiences to provide articles for such websites as Chincoteague Island Vacations and Berlin Dude. Wolfe holds a Bachelor of Arts in literature from California State University at Pomona.