A shrub is a small to medium sized plant. They are distinguished from trees by their multiple stems area shorter height and are usually under 20 ft tall. Small low shrubs generally less than 7 feet tall.
A shrub is more specifically used to describe the particular plant life of woody plants which are less than 28 ft high and usually have many stems arising at on near the base.
An area of cultivated shrubs in park or garden is known as shrubbery. When clipped to topiary, suitable species or varieties of shrubs develop dense foliage and many small leafy branches growing close together. Many shrubs respond well to renewal pruning. In which hard cutting back to “stool” results in long new stems known as ‘cane’.
Shrubs in common garden practice are generally considered broad-leaved plants. Shrubs are key foundation planting for many gardens. They offer structure and organizing points, many also supply year round color as well as food and shelter for wildlife.