Stone gardens are usually designed in order to exploit sloping sites; in this case, you can easily achieve a striking naturalistic effect. However, you can just as well build one on a perfectly flat site by importing rocks in order to create raised beds, especially when you have to work with more restricted areas. In fact, you can create a miniature rock garden in no more than three square feet and make it look lovely and luscious, a tiny corner of serenity in your yard.