Why does your Zantedeschia Captain Brunello have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Calla Lilies are sensitive to stagnant water; excessive moisture in the rhizome area leads to fungal pathogens like Pythium, causing leaves to turn yellow and eventually collapse. This is the most common cause of chlorosis in Zantedeschia species.
As heavy feeders during their growing season, Captain Brunello lilies require consistent nitrogen and magnesium. A lack of these nutrients prevents chlorophyll production, resulting in uniform yellowing of older leaves.
Zantedeschia are tropical perennials that thrive in warm conditions. Sudden drops in temperature or exposure to drafts can cause the plant to enter a defensive state, leading to rapid leaf yellowing.
While they can tolerate partial shade, Captain Brunello requires bright, indirect light to maintain its deep pigmentation and vigor. Insufficient light prevents photosynthesis, causing the plant to shed older foliage.
Your plant might also be experiencing one of these issues:
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