Sun Scald on Newly Transplanted Tomatoes: Recovery Plan

Sudden leaf curl and drying after transplant in intense sun is classic sun scald—tissue damage from UV/heat shock on unhardened plants.

Immediate Rescue

1. Shade cloth: 30–50% shade over plants for 5–7 days. Cheesecloth, row cover, or lattice work.
2. Water deeply: Soak root zone. Don't fertilize.
3. Anti-transpirant (optional): Wilt-Pruf or similar reduces water loss.
4. Wait: Damaged leaves won't recover; new growth will be adapted.

Proper Hardening-Off (Prevents This)

7–10 day gradual exposure:

• Day 1–2: 2 hours morning shade.
• Day 3–4: 4 hours morning sun.
• Day 5–6: 6 hours including midday.
• Day 7–8: Full day, bring in at night.
• Day 9–10: Overnight out, then transplant.

Patio-Specific Advice

• Concrete radiates heat—elevate pots on feet/bricks.
• Light-colored pots reduce root zone temperature.
• Group pots for mutual shade/humidity.
• Saucer with water = evaporative cooling.

Teaching Moment

Involve your son in daily checks—measuring growth, scouting pests, recording weather. Gardening journals build observation skills and ownership.