Shock Vs Rot Diagnosis on peace lily
What's Happening
Peace lily owners commonly misdiagnose root rot as transplant shock, leading to opposite treatments that worsen outcomes. True shock shows turgid (firm) stems with drooping leaves and firm white roots when inspected. Root rot displays soft translucent stems, foul odor, and black/mushy roots. The diagnostic confusion stems from both conditions causing wilting post-repotting, but shock requires hydration while rot requires drying.
How to Fix It
- 1
The root test: Gently unpot and rinse roots—firm white roots = shock (proceed with recovery); black mushy roots = rot (needs surgery)
- 2
Smell diagnostic: Healthy roots smell earthy; bacterial rot produces sour/foul odor; shock has no odor
- 3
Stem texture check: Squeeze leaf bases—firm stems indicate shock; soft/mushy stems indicate rot has reached crown
- 4
Treatment divergence: For shock—maintain moisture, high humidity, stable light. For rot—trim all affected tissue, treat with H2O2, repot in dry soil, withhold water 7-10 days
- 5
Recovery indicators: Shock shows gradual improvement over 2-4 weeks; rot either stabilizes after treatment OR continues declining if untreated
How to Prevent It
Always inspect roots before repotting—pre-existing rot will worsen after transplant stress. Sterilize tools between plants. If rot is detected, treat completely before repotting rather than combining stressors.