Why does your Lily Osasco have sudden leaf drop? Diagnose the cause and fix it with our step-by-step guide.
Lilies are highly sensitive to sudden shifts in ambient temperature. A rapid drop in temperature or exposure to cold drafts can trigger an emergency physiological response, causing the plant to shed leaves to conserve energy.
Excessive moisture in the substrate prevents oxygen from reaching the lily's roots, leading to root rot. As the root system fails to transport water upward, the plant sheds leaves to reduce transpiration load.
High humidity levels can promote Botrytis, which attacks the foliage of lilies. The fungus causes lesions that weaken the leaf attachment point, eventually leading to rapid defoliation.
A critical lack of nitrogen prevents the plant from maintaining chlorophyll levels. In lilies, this often manifests as yellowing followed by the senescence and dropping of older leaves.
Your plant might also be experiencing one of these issues:
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