I live on a limestone hilltop in central-western France. Have been wanting to have a rock garden for many years and have finally managed to have the time and energy to make one.
I studied a lot of book and online advice, including Todd Boland's very useful article on the subject.
So here is the story so far... Doubtless I have made a lot of mistakes... and feel free to tell me about them.
Being 'hilltop' my garden while moderately large (~1600 sq yds) is fairly flat. The only slope potential is really adjacent to the courtyard where there is a small stone wall about 18" high holding back the 'higher' part of the garden from the courtyard.
So I dug out about four feet of the elevated section storing the topsoil and the large number of limestone rocks which had comprised the wall. (See picture)... (continued next post)