Magnolia Root Damage from Patio Installation: Emergency Care

Damage Assessment

Roots cut on all four sides 3 ft from trunk on 30-ft magnolias = >30% root loss. Magnolias have shallow, wide roots. Major dieback or death likely.

Immediate Actions

• Water: 1" every 3 days for month (pan test), then weekly through winter (if above freezing).
• Monitor spring: Watch for new growth—indicator of survival.
• Contractor liability: Document; if trees die, contractor pays removal/replacement.

Root Loss Reality

• 25–30% loss = manageable dieback.
• >30% = severe decline, possible death.
• All-four-sides cut at 3 ft = likely >30%.

No Fertilizer

Stressed roots can't handle fertilizer salts. Water only.