Diagnosing Schefflera Leaf Drop: Root Rot, Watering Frequency, and Light Adjustment

Key Symptom: Blackened New Growth

Black, shriveled growing tips on a 5-year-old Schefflera in a 30-cm pot signal root rot. The plant likely uses less water as it ages, but watering routine wasn't adjusted.

Immediate Corrections

1. Ensure pot has drainage; clear any clogged holes.
2. Water only when top 1/3 of soil is dry. Add just enough to reach that dryness again in ~1 week.
3. Stop fertilizing completely.
4. Open curtains for more light (direct sun OK in UK winter).
5. Prune to shape; remove bare stems.

Why This Works

Frequent drying cycles let oxygen reach roots. Constant moisture = anaerobic conditions = rot. Light boosts photosynthesis, helping the plant rebuild roots.