A hedge shrub is a type of shrub that is used to create a boundary or divide a space. Two common types of hedge shrubs are PRIVET (6 letters) and YEW (3 letters). PRIVET is an evergreen shrub with glossy leaves and white flowers, while YEW is an evergreen conifer with red berries and flat needles. Both of these shrubs are popular choices for creating hedges due to their hardiness and ability to be trimmed into desired shapes.