Why does your Monstera thai constellation have sudden leaf drop? Diagnose the cause and fix it with our step-by-step guide.
Monstera Thai Constellation is highly susceptible to fungal pathogens like Phytophthora if the substrate remains saturated. Excessive moisture prevents oxygen from reaching the roots, leading to decay and the plant shedding leaves to reduce transpiration.
This cultivar is sensitive to sudden drops in ambient temperature. Exposure to cold drafts from windows or air conditioning units can trigger a stress response, causing the plant to drop older leaves rapidly.
While more resilient than some tropicals, extreme drops in humidity can cause the plant to struggle with moisture retention. This leads to physiological stress that manifests as sudden leaf senescence.
If the plant has been in the same potting medium for a long period, a lack of essential macronutrients like Nitrogen can cause the plant to shed leaves to conserve energy for new growth.
Your plant might also be experiencing one of these issues:
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