How to plant begonia tubers correctly? Pot and tuber size.
Begonia tubers quickly take root after soaking. It is important not to miss the moment and plant the sprouted tubers in the ground in time. If the roots are too long, you risk damaging them when planting the tuber in the substrate. As soon as the roots reach a length of 1-2 cm, they must be planted immediately. Fill the pot with soil or substrate to two-thirds of the pot. Place the tuber in the middle of the pot and lightly sprinkle with soil. No need to bury it deeply. 1 cm is enough. No need to water yet. About a week. Then I water as needed.