Why does your Chrysanthemum Cafu have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
As a heavy-feeding cultivar, Chrysanthemum 'Cafu' requires significant nitrogen for chlorophyll production. A lack of nitrogen causes older leaves to turn uniformly yellow before progressing up the stem.
Chrysanthemums are sensitive to 'wet feet'; excessive moisture in the substrate displaces oxygen, leading to root suffocation. This prevents the plant from transporting nutrients, causing chlorosis (yellowing) across the foliage.
If the soil pH is too high (alkaline), iron becomes chemically unavailable to the 'Cafu' cultivar. This results in interveinal chlorosis, where veins remain green but the leaf tissue turns bright yellow.
Two-spotted spider mites feed on the underside of Chrysanthemum leaves, injecting saliva that destroys cells. This creates a mottled, yellowish appearance often accompanied by tiny white speckles.
Your plant might also be experiencing one of these issues:
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