Begonia flowers are only trunks, which may be caused by a variety of reasons, such as pests and diseases, too much or too little water, unsuitable soil, etc. In this case, the first thing to tell is whether the begonia flower has died. If the trunk is still hard and has green sprouts, the begonia flowers may still be alive. In this case, here are a few things you can try to save the begonia flowers:
Pruning: Withered branches and leaves are cut off to reduce water and nutrient loss.
Fertilization: Begonia flowers prefer fertile, loose, well-drained soil. In spring and autumn, some organic fertilizers, such as well-rotted compost or bean cake fertilizer, can be applied to supplement the nutrients of begonia flowers.
Watering: Proper watering is very important for the growth of begonia flowers. During the growing season, keep the soil slightly moist, but not overly wet, so that the roots do not rot. In winter, reduce the amount of watering to avoid frostbite.
Light: Begonia flowers prefer full sunlight and it is best to provide at least 6 hours of direct sunlight per day. If there is not enough light, begonia flowers may grow poorly.
Pest control: If begonia flowers are attacked by pests and diseases, measures need to be taken in time. Some insecticides or fungicides can be sprayed to control pests and diseases.
In short, the key to saving begonia flowers is to find out what the problem is and take appropriate measures. If the begonia flowers are indeed dead, then it may be necessary to replant new ones.