Salt Damage to Corkscrew Willow: Emergency Remediation

Incident

Neighbor poured canal salt water over fence onto a recently transplanted corkscrew willow. Immediate fresh water flush applied. Gypsum purchased.

Action Plan

1. One gypsum application per label rate (typically 40–50 lbs/1000 ft²). Water in deeply.
2. Daily deep watering for 2–3 weeks to leach salts below root zone. Use a soaker hose.
3. Monitor with a soil salinity meter (EC meter, $20–30). If EC remains >2 dS/m after 3 weeks, repeat gypsum + leaching.
4. Do not fertilize until recovery evident (adds more salts).

Long-Term Solution

Move the tree this fall (after dormancy) to a location far from the neighbor's fence. You cannot monitor 24/7. A physical barrier (solid fence, berm) on the property line may also deter future incidents.

Why Gypsum Works

Calcium in gypsum displaces sodium on soil exchange sites; leaching flushes sodium away. One application is usually sufficient for a single event if followed by thorough irrigation.