Nature Hills Nursery's website describes a shrub as a "woody perennial plant" that fails to grow to tree size and possesses multiple stems. Perennial shrubs add much to a landscape, with some evergreen and others leafing out and even flowering year after year. Some types make popular ornamentals. Among these perennial shrubs are the barberry, the rose of Sharon and the juniper.
Barberry can survive under many types of conditions, withstanding heat and cold. This shrub has thorny branches and leaves that fall off before winter. Introduced into the United States in the 19th century, barberry shrubs do well in urban settings despite pollution and they will endure through times of drought.
Often a barberry shrub makes up a hedge, as its thorns will easily dissuade anyone from attempting to penetrate it. The spring flowers give way to red berries in the autumn that help sustain birds, squirrels and other wildlife when the weather turns sharply colder. It is not difficult to transplant barberry, and the shrub takes well to pruning in latter portion of winter or right after it flowers.
Most kinds of junipers are shrubs, although some can attain heights that could then classify them as trees. Juniper species--such as Juniperus communis, the dwarf juniper--are among the most common native coniferous plants in the entire world, states the "National Audubon Field Guide to Trees."
While juniper shrubs have various sizes and shapes, they are all evergreen plants that spread out after you plant them. This means that you must give them plenty of room to expand when planting one near a house. There are about 50 different juniper shrub species; most prefer lots of sun and acidic soil that drains well. Junipers will put a stop to erosion and you can even employ some types as ground cover.
Rose of Sharon
The perennial shrub called rose of Sharon is an excellent choice if you want something on your lawn that flowers very late in the growing season. The leaves of rose of Sharon are among the last to emerge in the spring months, and the shrub will bloom in late August and well into September in most locations. The shrub will not wilt in the hot climates of southern states and depending on if you prune it extensively, will produce many smaller flowers or fewer larger ones.
If you decide to prune this many-stemmed perennial often and shape it like a tree, the result is larger flowers but less of them; the opposite occurs if you leave the rose of Sharon alone. This shrub also goes by the name althea or hardy hibiscus and its flowers come in many hues.