Trimming leyland cypress
Can 20' ( healthy ) Leland cypress tree be trimmed without killing them We are in zone 7a rehoboth beach de.
Sussex County Delaware
Thank you for contacting Delaware Cooperative Extension. You may receive a short survey after the answer to this question.
Yes, you may trim leyland cypress. Trimming will not kill the trees. However, leyland cypress will not fill in with new branches and bushiness after trimming. If the trees are 20 ft tall and too close together, you may actually consider taking out every other tree. That way the trees can grow to their full potential.
I suggest having a professinal trim your trees to open up the tree canopy. Pruning correctly can maintain the shape of the tree. Incorrect pruning wounds can be avenues for disease causing microorganisms.