Leyland Cypress is a fast-growing evergreen tree distinguished by its dense, feathery foliage and pyramidal structure. It's a popular choice for hedges, windbreaks, and privacy screens because of its quick growth and ability to form a strong barrier. The tree's needles are delicate and scale-like, and the branches can withstand severe trimming. They can grow extremely big; the average mature size is 40-60 feet tall and 10-15 feet broad.