Potted begonia flowers need to use loose and alkaline soil, and the ph value of the soil is not lower than 7. You can choose the soil at the bottom of flower beds or tree roots and add one third of river sand. Don't plant the potted begonia flowers too deeply, so as to stretch the roots better. The best depth is 12 cm from the bottom of the basin, and a flower depends on the size of the tree. Water the soil until it is dry, each time until the water runs out. The specific watering depends on the weather. The soil in the basin should be kept moist, but no water can accumulate. It is best not to get wet in the rain, lest too much water lead to rotten roots. Don't water it when it is too cold.

Potted begonia flowers should be placed in sunny places. Begonia likes sunshine, but is not tolerant of shade. It should be placed in a place where sunlight can often shine, and it is easy to grow in a cool place. Shade in summer to prevent burning flowers and leaves. When spring buds germinate, some organic fertilizer should be applied to supplement nutrients, and water should be poured once. When the leaves fall in autumn, apply organic fertilizer and water them once. After the flowers wither, apply phosphorus and potassium fertilizer. You can buy some special fertilizer for begonia every day and fertilize it properly according to the instructions.

Matters needing attention in potted begonia flowers:

The cultivation of potted begonia flowers should pay attention to ventilation, so potted begonia flowers should be placed on the balcony or outdoors; In early spring, we should also pay attention to pruning branches and leaves, pick more hearts, don't worry about flower buds, and constantly remove the top of each branch, so that it will keep branching and become spherical instead of long, which is not only ugly but also easy to break. The flowers that have already opened should be pruned in time.

Potted begonia flowers should not be watered too much every day, so that the soil in the pot is moist, so as not to cause rotten roots. When absorbing sunlight, always turn the direction of the flowerpot to prevent it from leaning in a light direction. When applying fertilizer, be careful not to splash the fertilizer solution on the leaves; Flowering and winter and summer are not suitable for fertilization. If the plant grows up, it needs to be replaced in time to avoid affecting the growth of begonia.