Green hedge materials refer to the plants or plant materials used for creating hedges. Hedges are commonly used in landscaping to provide privacy, define boundaries, or serve as decorative elements. Common green hedge materials include evergreen species like privet (Ligustrum spp.), boxwood (Buxus spp.), and yew (Taxus spp.), as well as deciduous plants like hawthorn (Crataegus spp.) and holly (Ilex spp.). These plants are chosen for their ability to grow in a dense, upright form and their adaptability to pruning.