Which tree has the fastest growth rate?
Overall, willow trees and poplar trees are among the fastest-growing trees for colder growing zones, while evergreen trees and conifers can be relied upon to grow quickly in many different climates. What are the fastest-growing trees for privacy? Hybrid poplar tops the list. It can grow upwards of five feet per year. The Leyland cypress, green giant arborvitae, and silver maple are all close seconds because they add about two feet to their height each year.Hybrid Poplar (Populus deltoides x Populus nigra) Hybrid poplars are the thoroughbreds of the tree world. Their claim to fame is speed, with vertical growth of 5–8′ per year not being uncommon. Easily harvest this cottonless hybrid for firewood in five to seven years, which makes it a sustainable source.