Model code - CB4

It appeared in 1911 in Leyland, England. It is an evergreen tree with a dense symmetrical umbrella, columnar or narrow - conical. It is 15-20 (30) meters high and 3-5.5 (7) meters wide. The height of the tallest tree is 40 meters. It is a fast-growing plant, the fastest-growing tree among conifers. The annual growth of the young plant reaches 1 meter. The average annual growth is 40 cm in height and 20 cm in width.