The best time to take your cuttings is during January, February.

Mar 29, Leyland Cypress pruning changes once the tree reaches the desired height. At that point, annually trim the top 6 to 12 inches ( cm.) below the desired height.

When it regrows, it will fill in more thickly. Note: Take heed where you shrubpruning.barted Reading Time: 2 mins. Sep 15, In most cases a Leyland cypress will do better with a single, vertical trunk, so any extra main stems should be cut away at planting time.

If you cut into old brown material, the plant will not grow back.

To control overall growth cut side branches back by about a third and trim the top to the height you’re looking for/5(K). Homeowners who plant -- or inherit -- a Leyland cypress in a site where its mature height will be an issue can cut back the main leader at the top of the tree in early spring as new growth begins. You can cut down a leyland cypress yourself, but the task is best for a professional cutting service if the tree is very large or there isn't a clear fell area large enough to accommodate the.

Topping/pruning leyland cypress. The builder of my house put in a row of Leyland Cypress trees about 5' from a fence, with about 5 feet between each tree (as a privacy hedge) - bad choice, of course. The trees are growing fast (as you would expect) and I wanted to see if I could maintain then as a hedge around 12' or so in height.