Why does your Yellow Zantedeschia Aethiopica have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Yellow Calla Lilies are sensitive to saturated soil; excessive moisture prevents oxygen from reaching the rhizome, leading to fungal pathogens like Phytophthora. This causes the leaves to lose turgidity and turn yellow starting from the base.
As heavy feeders, Calla Lilies require consistent nitrogen for chlorophyll production. A lack of nitrogen results in uniform chlorosis (yellowing) across the older leaves first.
Zantedeschia Aethiopica is a tropical-origin plant and is highly sensitive to temperatures below 50°F (10°C). Sudden drops in temperature can cause the cellular structure of the leaves to collapse, manifesting as yellowing.
While they prefer bright light, extreme direct afternoon sun can scorch the leaves of yellow varieties, leading to bleached or yellowed patches. Conversely, too much shade can cause the plant to weaken and lose pigment.
Your plant might also be experiencing one of these issues:
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