Why does your Lilium OT Giordana have sudden leaf drop? Diagnose the cause and fix it with our step-by-step guide.
This fungal pathogen thrives in humid conditions and can cause rapid senescence of lily foliage. The fungus attacks the leaves, often starting with brown spots that quickly lead to total leaf necrosis and drop.
Excessive soil moisture in OT hybrids like 'Giordana' prevents oxygen from reaching the bulb, causing the roots to decay. When roots die, the plant can no longer support its foliage, resulting in sudden wilting and leaf drop.
OT lilies are sensitive to sudden shifts in temperature, particularly intense heatwaves or sudden frost. Extreme heat causes the plant to enter an emergency dormancy state to protect the bulb, shedding leaves to reduce transpiration.
A lack of available nitrogen prevents the lily from maintaining chlorophyll levels, leading to yellowing and subsequent leaf abscission. This is common if the plant has been grown in exhausted soil without seasonal fertilization.
Your plant might also be experiencing one of these issues:
English
Italiano
