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Grab This Ingredient To Keep Your Terracotta Planters Fungus-Free
The porous material of terracotta pots can develop hard-to-clean mineral deposits and harbor fungi that may harm your plants. To remove them, wash the pots with castile soap.
Castile soap isn't antibacterial or antifungal, but it combats fungus by removing the grime so fungal spores are rinsed away with water. Thus, the fungi are physically removed.
First, rub or scrape off excess dirt and all the mineral deposits with a rag. Add castile soap to water and wash the pots thoroughly, covering every nook and cranny.
If you're cleaning moldy pots, wear gloves and dispose of the water away from other plants since Castille soap only removes fungi and won't actually kill them.