Leyland Cypress
Q.

Leyland Cypress trees are brown

Zone Boston , MA | Linalbert99 added on July 14, 2015 | Answered

Upper 1/2 of 20 foot cypress tree turned completely brown. Live 30 miles north of Boston. Had record snowfalls this winter, and now the upper half of my Leyland Cypress trees are all brown. Can the trees be saved? What can I do to help the tree?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on July 16, 2015

There is no treatment for winter damage on Leyland Cypress.
With the subsequent damage that you have now had it's apparent that the tree was severely damaged.
You can prune away the dead branches to about 1/4" of any green still left on branches.
Leyland Cypress is very tolerant to heavy pruning but if more than 1/3 of the tree is damaged, it may need to be replaced.
It was a very harsh winter that effected the majority of the United States.

https://www.gardeningknowhow.com/plant-problems/environmental/winter-burn-in-evergreens.htm

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