Leyland Cypress Hedge Flood Death: 6 Days Underwater Is Fatal

Verdict: Dead

Cupressus × leylandii (Leyland cypress) hates wet feet. 6 days submerged = root asphyxiation + Phytophthora infection. Brown foliage = dead. No recovery.

Why the Myth Persists

"Leylandii don't mind wet feet" is false. They tolerate moist soil, not flooding. Your site floods repeatedly—wrong species for location.

Replacement Options for Flood-Prone Sites

Site Modification

Plant on berms/raised beds above flood level. Install French drains if feasible.

Remove dead Leylandii now—dry wood burns well. Replant with wet-site species on elevated ground.