how fast does an english walnut tree grow
Black Walnut. The black walnut tree (Juglans nigra) has a mature height of 50 to 75 feet and can grow in hardiness zones 4 to 9.As a medium grower, this type of walnut averages 12 to 24 inches of new growth per year.t has a faster annual growth rate of 25 inches per year, but only reaches 40 to 60 feet in height. The white walnut (Juglans cinerea) also reaches a maximum height of 40 to 60 feet, but has a slower growth rate of 12 inches per year. This tree grows in hardiness zones 3 to 7.