Leyland Cypress Interior Browning: Normal Shade Response

22 Leylands, 30 ft, 5 ft spacing in WV. Interior needles brown, exteriors green. Heavily shaded trees show more browning.

Diagnosis

Normal shade shed. Conifers drop shaded interior needles. Green exterior = healthy.

Topping Question

• Topping = removing leader, creating stubs
• Shortens life, creates weak attachments, disfigures
• Young hedges: Can reduce ≤⅓ height in April
• Mature trees: Topping risky—bare flat top, possible death

Width Reduction

Don't cut into leafless wood—no regrowth. Shear only green foliage.

Recommendation

Accept interior browning as normal. If height control needed, reduce young hedges by ⅓ in spring. Mature trees: live with height or remove.