The fungus may additionally cover stems or flowers. The most common colors of the begonia flower are red, pink, yellow, gold, white, purple and blue. However, just like any other plant, begonia might develop problems such as dropping leaves. Another common begonia disease is powdery mildew. Now you will see what are their characteristics and symbolism. The tuberous begonia stores food in its roots. Question From: D. colapinto - Naugatuck, Connecticut, United States . Begonia Leaves And Flowers Turning Black At Edges. This species of fungus only infects begonias, but it will spread readily between begonia plants. The Begonia maculata grows large clusters of white flowers on a single flower stem.. Want your indoor polka dot Begonia to bloom?. Although certain varieties host blooms of pink, white, red, or orange, these hardy plants are often grown for their foliage. Since 1931 we are specialized in sourcing and custom packing orders for both overseas and European destinations . As most other red flowers, the red begonia flower is a symbol of love and passion. Other common begonia issues include curling leaves, flowers turning brown, leaves turning brown, and leaves turning yellow. What may cause this and how can I fix this? Tuning is a Dutch exporter and trader of cut flowers and plants, located across the street from the Aalsmeer Flower Auction. Q: I recently purchased some begonias but the leaves and the flowers are turning black at the edges. The fungus feeds from the leaf cells, and needs the plant to survive. There are several practices that you’ve to carry out to ensure that your begonia is healthy and strong. If your tuberous begonia is not blooming, it may be due to bulb, location or care problems. Begonia leaves come in almost any color and pattern, and add texture and interest to the garden. Don’t fertilize in fall and winter. First of all we will mention the red begonia flower, which is usually favorite among all flower lovers. Flowers on a Polka Dot Begonia. Powdery mildew also might affect the flowers of fibrous begonia varieties. Tuberous begonias are perennial plants with full-bodied flowers in shades of white, yellow, orange and red. A begonia with powdery mildew will have white, powdery or thread-like growths on the top surface of leaves. A fungus (Erysiphe cichoracearum) causes powdery, white spots to form on both lower and upper leaf surfaces. At the end of … Treat your plant to a dilu ted liquid houseplant fertilizer every two weeks.This will give you bigger leaves and encourage blooms. Here's what you need to know about these high-impact plants. Greasy spots might form on the underside of infected leaves. Fertilize. Sounds like a fungal disease.