Not very tall at all. The ones that are going on each side of the door are going to be 2 stone high plus a capstone ~15" with some of it buried of course so should be about a foot high all said and done. The wall that is going to vary in height but at it's highest point it should be around 2ft.

Pictures don't really capture the overall grading but the yard itself is fairly flat so there are no plans for me to do anything like that.

Wife is still under the assumption that I'm going to be paying someone to plant everything........somehow trying to avoid that.