Laurel Hedges are a unique group of plants, and they are particularly well-suited to hedging. How Fast Do Skip Laurel Shrubs Grow? While some insects sap essential juice from the leaves, causing them to turn yellow and drop prematurely, others secrete sticky honeydew that not only attracts ants but also serves as the breeding ground for sooty mold fungus. If it doesn’t budge, you probably have clay soil. Hardy to zone 5, according to the USDA plant hardiness map, cherry laurel shrubs produce beautiful and aromatic white flowers in the spring.