Rules for planting

It is difficult to lay down rules for any system of planting, which may ultimately be useful to this purpose. Time, neglect, and accident, will often produce unexpected beauties. The gardener, or nurseryman, makes his holes at equal distances, and generally in straight rows; he then fills them with plants, and carefully avoids putting two of the same sort near each other; nor is it very easy to make him put two trees into the same hole; he considers them as cabbages or turnips, which will rob each other's growth, unless placed at equal distances: yet, in forests, we most admire those double trees, or thick clusters, whose stems seem to rise from the same root, and these should be our models in ornamental planting.