Why does your Begonia maculata Raddi have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Begonia maculata is highly sensitive to moisture retention; constant dampness leads to fungal pathogens like Phytophthora attacking the root system. This prevents the plant from transporting nutrients, causing the iconic polka-dotted leaves to lose chlorophyll and turn yellow.
A lack of nitrogen prevents the production of chlorophyll, leading to a uniform yellowing that often starts with the older, lower leaves. This is common in Begonias grown in depleted potting mixes or small containers where nutrients are quickly exhausted.
As tropical plants, Begonia maculata requires high humidity; dry air can cause leaf margins to yellow and crisp. High temperatures combined with low moisture levels force the plant to transpire faster than it can replace water.
While they love bright indirect light, direct afternoon sun can scorch the delicate leaves of this species. This-solar radiation damage causes the chlorophyll to break down, resulting in yellow or bleached-looking patches.
Your plant might also be experiencing one of these issues:
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