Mar 29, If you are wondering when to prune Leyland Cypress, then summer is your best time frame. During the first year, trim the top and sides to start forming the shape you desire. During the second and third year, trim just the side branches that have wandered out too far to maintain and encourage foliage treeleaning.buzzted Reading Time: 2 mins.
Sep 15, The best time to prune is in early spring, before the annual growth spurt begins. This also gives you the chance to sort out any winter damage. The dense foliage of a leylandii can collect a lot of snow and ice, so broken branches aren’t unheard of.
If you feel like doing some more light shaping any time through to about mid-summer, though, go ahead/5(23K).
Nov 28, Leyland cypress trees also respond well to light pruning or shearing later in the growing season anytime between spring and early-to-mid summer. However, avoid pruning a tree in late summer or. A: You can’t restrain it from growing, but Norm Mittleider, from The Art of Pruning, says Leyland cypress can be maintained as a nice hedge.
The trick is to go in and make deep cuts twice a year, in early April and early August.
Reduce a thick, coarse branch by pruning back to a smaller, finer branch. In this way a soft, fine-textured look can be achieved and maintained.