1. When planting orange trees in pots, you should choose a substrate with soft texture, good air permeability and rich humus content, which can be mixed with humus soil, garden soil and sand. This substrate has good drainage and permeability, which is beneficial to the growth of its roots. The container should be a flowerpot with large caliber, and the bottom of the flowerpot should be provided with drainage holes to ensure good drainage and air permeability. Potted soil should be replaced every 1-2 years to avoid long-term use of soil hardening affecting its growth.

2. Orange trees have a high demand for light. When maintaining, try to choose a place with long light time and good ventilation. Most potted plants are maintained indoors, so they need to be placed in balconies, living rooms and other places with good light to avoid yellowing and leaf loss caused by long-term shading.

3. In different seasons, orange trees have different needs for water. It is enough to ensure that the soil is thoroughly watered in time after drying in spring and autumn, and the watering times need to be reasonably adjusted according to the size of potted plants and soil drainage. In summer, when the temperature is high, the water evaporates faster. It is best to check the dryness and wetness of the basin soil every morning and pour some water properly. When drying at high temperature, you can moisten plants with basin water.