Why does your Geranium have sudden leaf drop? Diagnose the cause and fix it with our step-by-step guide.
Zonal Geraniums are highly susceptible to Phytophthora root rot when soil remains saturated. Excess moisture deprives roots of oxygen, leading to rapid decline and the shedding of leaves as the plant fails to sustain them.
Geraniums are sensitive to sudden temperature drops or cold drafts. Rapid changes in ambient temperature can trigger a shock response, causing the plant to drop leaves to conserve energy.
High humidity and poor airflow can promote Botrytis cinerea, which attacks tender tissue. As the fungus spreads, it can cause leaves to wilt and drop prematurely.
A lack of available nitrogen prevents the plant from maintaining chlorophyll levels, often resulting in older leaves turning yellow and falling off.
Your plant might also be experiencing one of these issues:
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