Why does your Chrysanthemum Borilli have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Chrysanthemums are heavy feeders, and a lack of nitrogen prevents the production of chlorophyll, causing older leaves to turn pale yellow first. This is common in 'Borilli' during their rapid growth phase if soil nutrients are depleted.
Excessive moisture in the substrate leads to anaerobic conditions, causing root rot which prevents the plant from transporting nutrients. This often manifests as limp, yellowing foliage in Chrysanthemums.
Two-spotted spider mites feed on the underside of Chrysanthemum leaves, injecting toxins that cause chlorotic spotting and eventual yellowing. This is a common pest for this cultivar in dry, indoor environments.
Chrysanthemums are sensitive to sudden drops in temperature or frost. Rapid fluctuations can cause metabolic disruption, leading to chlorosis and leaf yellowing as the plant enters a defensive state.
Your plant might also be experiencing one of these issues:
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