Why does your Zantedeschia Captain Melrose have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Zantedeschia species are highly susceptible to rhizome rot if kept in overly saturated soil. Excess moisture prevents oxygen from reaching the roots, leading to chlorophyll breakdown and characteristic yellowing of the foliage.
As heavy feeders during their growth phase, a lack of nitrogen can cause older leaves to turn yellow first. This prevents the plant from maintaining healthy chlorophyll levels throughout the leaf blades.
Calla Lilies are sensitive to sudden drops in temperature. Exposure to drafts or temperatures below 55°F (13°C) can cause the plant to enter a defensive state, resulting in chlorosis.
While they can tolerate some shade, insufficient light prevents the 'Captain Melrose' from performing adequate photosynthesis. This lack of energy production manifests as pale, yellowing leaves.
Your plant might also be experiencing one of these issues:
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