To a great many people, a stone nursery is an Alpine nursery. In any case, did you realize that the Japanese regularly construct their nurseries around rocks? They start with deliberately chosen rocks which they place at the core of their nursery. Lovely serpentine rocks are regularly picked for their striking green shading. They as a rule make triangular groups containing an odd number of rocks masterminded to look like small scale multiplications of huge mountains.
The objective is to emit a feeling of security, of the power and inescapability of nature. Include different sorts of greeneries and a couple of bonsais and you have a smaller than normal woodland in that spot in your yard. This can be a generally excellent thought if space is constrained and you need to be certain that nothing will exceed the space and assume control over the entire nursery.