Why does your Zantedeschia Captain Carrara have sudden leaf drop? Diagnose the cause and fix it with our step-by-step guide.
Zantedeschia species are highly susceptible to Phytophthora caused by waterlogged soil. Excessive moisture prevents oxygen from reaching the rhizome, leading to rapid decay of the base and sudden wilting/leaf drop.
Calla Lilies are tropical perennials that thrive in consistent warmth. A sudden drop in ambient temperature or exposure to frost can trigger an emergency dormancy response, resulting in rapid foliage loss.
High humidity combined with poor air circulation can promote Botrytis cinerea. This fungus attacks the leaf tissue, causing lesions that weaken the petiole and eventually cause the entire leaf to detach.
A severe lack of nitrogen prevents the plant from maintaining its large, lush foliage. While usually more gradual, a critical depletion can lead to rapid senescence and leaf shedding in heavy-feeding cultivars like 'Captain Carrara'.
Your plant might also be experiencing one of these issues:
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