Plants which are selected for use in this group must have a normally low-growing habit. In general, their maximum height should approximate not more than five to six feet.
If the eventual height of these plants is to be greater than this, they should be of such types as will lend themselves readily to pruning and still retain their natural outlines.
On many private estates, at the sharp curves of entrance drives and on either side of the main entrance, safety of traffic demands that an open view be preserved in order to avoid accidents. It becomes an important question in the development of such plans to decide upon material which should be selected for this purpose. If the degree of care which this material is to receive in the years subsequent to its original planting is that ordinarily given by an expert gardener, the designer may select many taller-growing species of shrubs, which, under this expert care, can be kept within the desired limits of growth. For those who wish to be perfectly safe in their selection, material included in this list represents the general range of the important genera and species which are available.
There are many locations where high planting as a part of the general design is more desirable. In such instances a vista formed by using a group of lower shrubs can be used. If higher shrubs are desirable as a part of the design it is sometimes possible to preserve the open views by setting the tall shrubs farther back from the sides of the drive.
The fragrant honeysuckle is a good substitute where one might otherwise use types such as the tartarian honeysuckle. The pink weigela is much to be preferred to the other, coarser-growing types of weigelas.