Why does your Anthurium andraeanum Amis have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Anthuriums are highly susceptible to root suffocation if the substrate remains saturated. Excessive moisture prevents oxygen from reaching the roots, leading to fungal decay (Pythium or Phytophthora) which manifests as progressive yellowing of the foliage.
An older Anthurium leaf turning entirely yellow is often a sign of mobile nutrient depletion. If the plant has been in the same potting medium for several years, it may lack sufficient nitrogen to maintain chlorophyll production.
Anthuriums require high humidity (above 60%) to thrive. Low humidity or sudden temperature drops can cause the plant to shed nutrients from leaves, leading to chlorosis and eventual yellowing as a stress response.
Over-application of fertilizers can lead to a buildup of mineral salts in the sphagnum or bark medium. This creates osmotic stress, making it difficult for the roots to absorb water, resulting in yellowing leaf margins.
Your plant might also be experiencing one of these issues:
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