The answer to 'what is shrub' is a woody, perennial plant that is typically smaller than a tree. Shrubs are multi-stemmed plants that can range in height from 2 to 15 feet tall, and they often have a rounded, bushy appearance. Shrubs are commonly used in landscaping for their ornamental foliage, flowers, or berries, and they can serve various functions such as providing privacy, adding texture, or creating visual interest in a garden.
Shrubs come in a wide variety of shapes, sizes, and colors, and they can be evergreen or deciduous. Some common examples of shrubs include azaleas, hydrangeas, rhododendrons, and boxwoods. When choosing shrubs for your landscape, it's important to consider factors like the plant's mature size, sunlight requirements, and growing conditions to ensure it will thrive in your specific environment.