Root Rot on pothos
What's Happening
True root rot fungi (Pythium, Phytophthora) are water molds that thrive in anaerobic, saturated soil conditions. Unlike surface saprophytic molds, these pathogens attack root tissue directly, causing vascular collapse. Symptoms include rapidly yellowing leaves, wilting despite wet soil, and distinctive black/brown mushy roots with foul odor.
How to Fix It
- 1
Emergency unpotting: Remove plant immediately and rinse all soil from roots
- 2
Surgical root removal: Cut ALL black, brown, or mushy roots until only white firm tissue remains
- 3
Sterilize remaining roots: Soak in 3% hydrogen peroxide (1:1 with water) for 20 minutes
- 4
Callus period: Lay plant on paper towel in shade for 48 hours to seal cut wounds
- 5
Repot in completely dry soil: Use fresh well-draining mix; do not water for 1 week
- 6
Resume minimal watering: Wait until soil is bone dry and leaves droop slightly
How to Prevent It
Never allow soil to remain wet for more than 3-4 days. Use terracotta pots for moisture wicking. Ensure drainage holes are unobstructed. Water based on soil dryness, not schedule.
Related Problems
Same Problem on Other Plants
Go Deeper
This is covered in-depth in the pothos Mastery Pack — structured modules with video walkthroughs, advanced protocols, and rescue timelines.
Get the Mastery Pack — $37 →