Why does your Zantedeschia Captain Signum have brown leaf tips? Diagnose the cause and fix it with our step-by-step guide.
As tropical perennials, Zantedeschia cultivars require higher ambient moisture. Dry air causes the delicate edges of the foliage to desicate and turn brown before the rest of the leaf.
Accumulated mineral salts from tap water or excessive fertilization can cause osmotic stress at the leaf margins. This 'burning' effect is common in Calla Lilies when nutrients are not properly flushed through the substrate.
Zantedeschia Captain Signum thrives in consistently moist but well-drained soil. Allowing the rhizome to undergo extreme drying cycles followed by heavy watering can cause tip necrosis.
While often starting as dark spots, fungal pathogens in overly wet conditions can cause edges to necrotize and turn brown. This is particularly prevalent if there is poor air circulation around the large leaves.
Your plant might also be experiencing one of these issues:
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