Why does your Chrysanthemum Baltazar have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Chrysanthemums have a high demand for nitrogen during their vegetative growth phase. A lack of available nitrogen causes older, lower leaves to lose chlorophyll and turn pale yellow first.
Chrysanthemums are prone to root rot if the substrate stays saturated. Waterlogged soil displaces oxygen, leading to yellowing leaves and a general loss of turgidity in the plant.
If the soil pH is too high (alkaline), 'Baltazar' cannot absorb iron efficiently. This results in interveinal chlorosis, where leaves turn yellow but the veins remain dark green.
Spider mites feed on the underside of Chrysanthemum leaves, extracting sap and causing a mottled yellow appearance. Severe infestations can lead to rapid leaf drop.
Your plant might also be experiencing one of these issues:
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