Rieger Begonia Flowers Turning Brown

Do not allow more than the top half of the soil to dry between watering.
Rieger begonia flowers turning brown. Or it could be from a lack of atmospheric humidity. Your begonia likes consistent moisture. Begonias begonia spp perk up garden beds and borders with brightly colored flowers or leaves.
Avoid overhead irrigation and splashing. Outdoors water tuberous begonias in the garden with a drip system or a hose than drips directly into the soil. If the flowers begin to drop off the air temperature is too warm for the rieger begonia.
Fibrous rooted cultivars have small brown leaf spots some cultivars exhibit no symptoms despite heavy infection. Problems with begonias and stem rot. The three issues we see most often on begonias submitted to michigan state university plant pest diagnostics are impatiens necrotic spot virus bacterial blight xanthomonas axonopodis pv.
Begonias do not like soggy soil or to sit in water so be sure to discard any water that has accumulated in the saucer after watering. The most common cause of brown leaf edges is that your begonia is incredibly dry. If your air is too dry a humidifier close to the plants can help.
Rieger begonias begonia x hiemalis are called winter flowering begonias since they require cool temperatures and short days to bloom. Petals show brown spots or transparent blotches where water drops have soaked in. If you live in a mild winter region and are growing the rieger begonia outdoors plant the begonias in partial sunlight to light shade and space the plants about.
Begonia and broad mites each of these is caused by a pest or pathogen with specific management strategies. There are several different but somewhat common problems on rieger begonia. The brown spots on the leaves could be a fungus or bacterial infection.