I was planning on making a boxed in area using railroad ties to grow
apple trees and garden berries. Also planed on building a fence using
railroad ties as posts and growing blackberries.

Someone on another group said nt to do that because of the pressure
treatment of railroad ties or cresote. Is this a problem? I think these
ties are old. I can get them for free from a local company that uses
them to stack wood flooring on.