There are several small garden designs and most of those depend on the geometrical shapes to give good impact such as straight hedges and walls, or else having paths that have perfect right angles at every bend, along with having geometric shaped beds.
Let us consider one of formal herb first. This kind of garden is laid on either a circular theme or square theme, and the paths in it bisects each other into equal-sized segments with double borders, which is also found in traditional gardens. The other types of small garden designs are walled gardens, carpet bedding gardens, pergolas, terraces, and more. All these are considered to be formal gardens. The basic concept of formal garden is its geometrical space, either in a traditional plan or modern way.