Peace Lily Root Rot: Diagnosis, Repotting, and Recovery

A peace lily with yellowing/browning leaves despite reduced watering. Photos show the plant. Expert advises checking roots for rot and repotting.

Root Inspection: The Critical Step

Gently remove plant from pot and examine roots:

• Healthy: Firm, white/cream, crisp
• Rotted: Dark brown/black, mushy, crumble on touch, foul odor
• Root-bound: Dense circling roots, little soil visible

Repotting Protocol

1. Trim: Remove all dead/rotted roots with sterile scissors
2. Soil: Well-draining potting mix—avoid high-peat mixes. Look for blends with perlite, vermiculite, or sand for drainage.
3. Pot: Must have drainage holes. Size up only 1-2" if root-bound.
4. Plant: Position at same depth, firm soil gently
5. Water: Thorough drench until water exits drainage holes
6. Drain: Empty saucer completely—never let sit in water

Post-Repot Watering Schedule

• Wait until top 1-2" of soil is dry (plant may slightly droop)
• Water thoroughly, drain completely
• Repeat cycle—consistent moisture without soggy bottom

Light Requirements

Bright indirect light. Insufficient light slows recovery and promotes weak growth. Fluorescent lights work if close (6-12") and on 12-14 hours daily.

Recovery Timeline

New growth in 2-4 weeks if viable roots remain. If roots were completely rotted, the plant may not recover—consider propagation from healthy crown sections.