African Sumac Branch Dieback: Water or Structure Issue

Three-year-old African sumac (Rhus lancea) has one of four main trunks browning and losing leaves; others fine. Multi-trunk habit is problematic—should have single leader.

Likely Causes

• Overwatering → root rot (check soil drainage).
• Low spot collecting water → needs raised planting.
• Mechanical damage to that trunk's roots or base.

Steps

1. Reduce watering; ensure excellent drainage.
2. Search "African sumac root rot" for symptom comparison.
3. Consider removing competing trunks to favor one strong leader.
4. Consult local arborist for on-site evaluation.