root rot on Ficus
Quick answer
If your Ficus has root rot, the most likely cause is: Overwatering Ficus causes root oxygen deprivation leading to anaerobic conditions. Ficus roots require oxygen in the soil pores; saturated soil displaces oxygen, creating conditions for Pythium and Phytophthora root rot pathogens. Root hairs die first, then roots turn brown and mushy, unable to absorb water — paradoxically causing wilting despite wet soil.
Start here:
- 1. 1. Check roots by gently removing plant from pot. Healthy roots are white/tan and firm; infected roots are brown, black, and mushy.
- 2. 2. Trim all infected roots with sterile scissors, cutting 1 inch above visible rot. Sterilize tools with alcohol between cuts.
Why Ficus gets root rot
Ficus spp.
Overwatering Ficus causes root oxygen deprivation leading to anaerobic conditions. Ficus roots require oxygen in the soil pores; saturated soil displaces oxygen, creating conditions for Pythium and Phytophthora root rot pathogens. Root hairs die first, then roots turn brown and mushy, unable to absorb water — paradoxically causing wilting despite wet soil.
How to reverse root rot on Ficus
- 1
1. Check roots by gently removing plant from pot. Healthy roots are white/tan and firm; infected roots are brown, black, and mushy.
- 2
2. Trim all infected roots with sterile scissors, cutting 1 inch above visible rot. Sterilize tools with alcohol between cuts.
- 3
3. Repot in fresh, dry, well-draining soil mix. Do NOT reuse old soil — it contains pathogens.
- 4
4. Reduce watering by 50% after repotting. Water only when top 2 inches of soil are completely dry.
- 5
5. Place in bright indirect light to encourage new root growth. Do not fertilize until plant recovers (4-6 weeks).
Keep root rot off this Ficus
Water only when top 1-2 inches of soil are dry. Ensure pot has drainage holes. Use well-draining potting mix (peat-based with 20-30% perlite). Empty saucer after watering. In winter, reduce watering frequency by 50%.