Persistent White Mold on Houseplant Soil: Control, Not Cure

Despite using Consan 20, repotting, and careful watering in a low-humidity home, white mold keeps returning on houseplant soil surfaces.

Why It Persists

Consan sterilizes but doesn’t prevent recolonization. Spores are everywhere—on pots, saucers, tools, windowsills. Complete eradication is unrealistic; aim for control.

Integrated Management Plan

1. Add Consan or a soil fungicide to every watering.
2. Aerate soil surface frequently.
3. Wipe pots with Clorox wipes weekly.
4. Wash saucers with bleach solution weekly.
5. Switch to lightweight container mixes (avoid bark-based soils).
6. Cover soil with inorganic mulch (pea gravel) to hide mold.

Most surface molds are saprophytic (decompose organic matter) and not harmful to plants.