What are the risks of using untreated canvas for outdoor flower pots in rainy regions?

Using untreated canvas for outdoor flower pots in rainy regions can pose several risks. First, untreated canvas absorbs water, leading to prolonged dampness that promotes mold and mildew growth, harming both the pot and the plant. Second, constant exposure to rain weakens the fabric, causing it to deteriorate quickly and lose structural integrity. Third, the retained moisture can lead to root rot, damaging the plant's health. Additionally, untreated canvas may leach dyes or chemicals into the soil, affecting plant growth. To avoid these issues, consider using waterproof-treated canvas or alternative materials like ceramic or plastic for better durability and plant protection in wet climates.