Leyland Cypress topiary, often styled as spirals, 3-ball pom-poms, or cones, are fast-growing, dense evergreen conifers (Cupressocyparis leylandii) known for their vivid green color and soft, scale-like foliage. Ideal for formal entryways, containers, or focal points, these hardy trees are drought-tolerant, disease-resistant, and thrive in full sun to partial shade.