Why does your Allium sativum have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Nitrogen is critical for chlorophyll production in garlic. When levels are low, the older leaves turn pale yellow first as the plant mobilizes nitrogen to new growth.
Excessive moisture causes anaerobic conditions in the soil, leading to root hypoxia and impaired nutrient uptake. This often manifests as yellowing leaves followed by potential bulb rot.
This fungal pathogen (Sclerotium cepivorum) causes leaves to turn yellow and eventually collapse. It is a serious disease that can affect the bulb's integrity.
This fungus thrives in high humidity and cool temperatures, causing yellowing patches that eventually turn brown and necrotic on the garlic leaves.
Your plant might also be experiencing one of these issues:
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