Green Ligustrum topiary trees, often from the Waxleaf Privet (Ligustrum japonicum) family, are versatile, evergreen shrubs with glossy, dense foliage that are easily sculpted into shapes like balls, cones, or poodle forms. These hardy, drought-tolerant plants thrive in USDA Zones 7-11, making excellent container or formal garden specimens that require, on average, 2-3 prunings per year to maintain their shape.