The design of a rock garden and the arrangement of the stones are so subjective and individual, that it is difficult to give a piece of advice but here is one good tip we can give you:. Before you make a decision about your rock garden, you should see many other rock gardens, in order to compare properly. What do we need to arrange a rock garden? How to arrange a rock garden - design ideas and helpful tips Please note: You are currently browsing img 30 best images about river rock decor on pinterest river that is 736x552px in size. This image is listed in garden rock decor category. How to arrange a rock garden design ideas and helpful tips, 736x552 in 109.77 KB.