root rot on Bonsai
Quick answer
If your Bonsai has root rot, the most likely cause is: Overwatering is the primary cause of bonsai death, especially for species like Rangpur lime (Citrus aurantifolia 'Rangpur') that cannot tolerate wet roots. Collected mountain specimens from rocky terrain develop extensive fine root systems that are highly sensitive to saturation.
Start here:
- 1. 1. Collect in March-April when plants are dormant but not yet sprouting — root systems establish more safely
- 2. 2. After collecting, keep in deep damp sawdust or loose garden soil for at least one year — do NOT repot into bonsai container yet
Why Bonsai gets root rot
Overwatering is the primary cause of bonsai death, especially for species like Rangpur lime (Citrus aurantifolia 'Rangpur') that cannot tolerate wet roots. Collected mountain specimens from rocky terrain develop extensive fine root systems that are highly sensitive to saturation.
How to reverse root rot on Bonsai
- 1
1. Collect in March-April when plants are dormant but not yet sprouting — root systems establish more safely
- 2
2. After collecting, keep in deep damp sawdust or loose garden soil for at least one year — do NOT repot into bonsai container yet
- 3
3. When potting for first time: thin root ball by ~1/3 only, prune branches lightly if needed
- 4
4. Progressive container reduction: 8-month intervals between container size reductions, never massive root pruning at once
Keep root rot off this Bonsai
Use good garden soil that drains well. After collecting, plant in deep damp sawdust or loose garden soil — not in a bonsai container immediately. Wait one year before moving to a training container.