Why does your Begonia rex-cultorum have drooping leaves? Diagnose the cause and fix it with our step-by-step guide.
Rex Begonias have large, fleshy leaves that lose moisture rapidly through transpiration. When the substrate dries out completely, the lack of turgor pressure causes the leaves to wilt and droop.
Excessive moisture in the pot suffocates the roots of Rex Begonia, leading to fungal decay. As the root system fails, it can no longer transport water to the leaves, ironically causing them to droop even in wet soil.
Rex Begonias are tropical plants sensitive to sudden changes in environment. Exposure to cold drafts from windows or air conditioning units can cause the plant's metabolic processes to slow, resulting in drooping.
A lack of available nitrogen prevents the development of strong cell walls and chlorophyll. In Rex Begonias, this often manifests as a loss of structural integrity in older leaves.
Your plant might also be experiencing one of these issues:
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