Managing an Overgrown Leyland Cypress

That cute seven-foot Leyland cypress planted by the driveway can become a 25-foot monster in just eight years. While it's tempting to shear it back hard, drastic pruning on this species is risky and often leads to bare, brown patches that never recover.

The One-Fourth Rule

If you must reduce the size, do it gradually: remove no more than one-fourth of the total height each winter. Crucially, every pruning cut must leave green, unshaded foliage below it. Leyland cypress does not regenerate from old wood; once a branch is stripped of needles, it stays dead.

When to Consider Replacement

If the tree is already far too large for its space, the gradual approach may take years and still leave a misshapen specimen. A better long-term solution is to remove the Leyland entirely and plant a naturally compact evergreen such as 'Emerald Green' arborvitae (Thuja occidentalis 'Emerald Green'), which tops out around 12–15 feet and maintains a tidy pyramidal form without heavy pruning.