Begonia Flower Petals Turning Brown. Others will develop brown water-soaked spotting on the leaves. Remove it early so that it cannot fall down into the leaves and cause them to rot.
Your Begonia likes consistent moisture. Remove it early so that it cannot fall down into the leaves and cause them to rot. The most common cause of brown leaf edges is that your Begonia is incredibly dry.
The leaves will germinate and grow just fine but as they approach their final size they get brown edges and die.
Rhizoctonia fungus causes fine webbing and sunken brown dry areas of stem rot at the soil surface. Other common begonia issues include curling leaves flowers turning brown leaves turning brown and leaves turning yellow. Rhizoctonia fungus causes fine webbing and sunken brown dry areas of stem rot at the soil surface. Dont confuse it for a symptom of gray mold.