Why Hydrogen Peroxide Won’t Cure Root Rot

A nursery worker suggested drenching soil with hydrogen peroxide to “reintroduce oxygen” and fix root rot. Unfortunately, this does more harm than good. While peroxide briefly releases oxygen, it also oxidizes and destroys beneficial organic matter in the soil, further stressing plants.

True root rot management starts with correcting watering practices—water deeply but infrequently (about once per week)—and improving drainage before planting by amending soil with conditioner. Healthy soil structure and proper irrigation are the lasting solutions.