Sowing and propagation of bulbous Begonia

Choose spring sowing or autumn sowing according to specific varieties. Because the seeds of bulbous Begonia are very small, they need to be evenly mixed with fine soil when sowing, and then sown in a shallow basin. There is no need to cover soil after sowing. The soil for sowing can be mixed with rotten leaf soil, peat, river sand, etc. For the first watering, it is best to adopt the immersion method. The specific methods are as follows: pour clean water upward from the basin bottom hole to make it penetrate into the basin surface and wet, then cover it with glass and put it in the semi shade. There is no need to water every day, so that the basin soil can be wet. It can germinate in about 3 weeks at a temperature of about 23 ℃. After emergence, you can remove the glass and gradually increase the light at the same time. When the seedlings grow 2 true leaves, they can be intercropped, and when 4 true leaves are transplanted into the small basin. Generally, the basin needs to be changed step by step for 2 or 3 times. It takes about 6-7 months from sowing to flowering

Tuber propagation of bulbous Begonia

Note that the material for tuber propagation is not suitable for old tubers with more than 3 years. Before the tuber sprouts, use a sharp knife to cut along the top of the tuber. Each tuber needs to keep 1-2 bud holes, and apply plant ash or sulfur powder on the incision to accelerate its drying and avoid bacterial infection. Plant it after it is slightly dried in the shade. The planting depth should be slightly exposed to the soil of some tubers, otherwise it is easy to rot

Cutting propagation of bulbous Begonia