Why does your Calathea insignis have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Pet FriendlyCalathea insignis is a tropical species that requires high ambient humidity; when air is too dry, the plant struggles to maintain cell turgor, often resulting in yellowing leaves starting at the edges.
Excessive moisture in the substrate leads to anaerobic conditions, which prevents oxygen from reaching the roots and triggers yellowing of the foliage as the root system begins to decay.
Too much direct sunlight can scorch the delicate leaves, causing chlorosis (yellowing), while too little light prevents necessary photosynthesis, leading to pale, yellowing foliage.
Calatheas are sensitive to fluoride, chlorine, and salts found in tap water; accumulation of these minerals in the soil can interfere with nutrient uptake and cause yellowing.
Your plant might also be experiencing one of these issues:
English
Italiano
