A shrub or bush is a small to medium-sized woody plant. It is distinguished from a tree by its multiple stems and shorter height, usually under 20 feet (6 m) tall. Plants of many species may grow into shrubs or trees, depending on their growing conditions. Small, low shrubs, generally less than 6.6 feet (2 m) tall, such as lavender, periwinkle, and most small garden varieties of roses, are often termed subshrubs.
An area of cultivated shrubs in a park or a garden is known as shrubbery. When clipped as a 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 a "stool" results in long new stems known as "canes." Other shrubs respond better to selective pruning to reveal their structure and character.
Shrubs in common garden practice are generally considered broad-leaved plants, though some smaller conifers such as mountain pine and common juniper are also shrubby in structure. Species that grow into a shrubby habit may be either deciduous or evergreen.
- Plantpedia: Browse flowering plants by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, or Origin
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