Grape Vines :reply update Found this site on websearch for transplanting mature Grape Vines. I live in Northern California. I Believe they are Table grapes. After reading throught the postings I'm looking for some advice. I would like to know about possible transplanting very old (20+ years) grape vines or would I be more successfull with what I read about here in this forum is called "layering"? Wondering about timing and prep to transplant, or since summer is almost here, try "layering"? Tips?