LWIRE98 asked:

I am fixing to plant Zoysia grass for my lawn and my neighbor has St. Augustine. I believe Zoysia is more dense and will overtake his lawn. I need to know how to keep the two seperate(from growing over one another) while still being able to mow without obstruction. What I really want to avoid is his grass from invading my lawn. I think those metal boarders you can hammer into the ground would work, but how high to I need it to be above ground level to effectively keep the lawns seperated?