Leyland cypresses are among the fast-growing conifers. If they are not cut, they can reach a height of up to 30 meters. However, that takes time. How much growth does a Leyland cypress add per year?

That's how fast the Leyland cypress grows a year
Leyland cypresses grow particularly quickly in a favorable, somewhat sheltered, sunny location. They grow between 50 and 100 centimeters in height and width every year.
Regular pruning is a good way to limit growth. In the hedge, the "bastard cypresses" are usually kept at a height of three to five meters.
By cutting back, you also promote growth and achieve better branching of the trees.
tips
Due to their growth, the unfortunately poisonous Leyland cypresses are popularly known as "neighbors' fright". Don't let a Leyland cypress hedge get too tall so you don't get in trouble with your neighbors.