Eggplants that are edible are generally about the size of a finger in adults, and the roots are not too big. However, if you want eggplants to bear fruit normally, you need more potting soil and sufficient nutrient supply. A flower pot of about 30 centimeters can be filled with soil to meet the normal growth of an eggplant. Base fertilizer must be added to the soil. The base fertilizer should not be too much to avoid burning the roots. Fertilizer can be applied in batches during the growth process. When the eggplant grows up, its leaves will be very large, so pay attention to the water supply. Adequate care is required. After flowering, feathers or brushes can be used to assist in pollination to improve fruit bearing. It is not clear whether one eggplant can bear fruit normally. To be on the safe side, it is best to plant two or more to pollinate each other. After fruiting, the eggplants can be removed when they are fully grown to avoid increasing nutrient consumption and affecting later flowering and fruiting.