1. Small pomegranate trees with short plants, small leaves and small flowers and fruits are often used to make bonsai in the stage of heap culture, such as fire pomegranate, four-season pomegranate and agate pomegranate. Pomegranate can be propagated by sowing and cutting. The saplings obtained by the above two methods can only be cut and stored to cultivate small and medium-sized bonsai after planting for more than 3 years.

2. In the branch storage stage, according to the shape of pomegranate tree, cut off the trunk at a proper height and cut off the main branch. Pomegranate bonsai can be made into straight-stem, inclined-stem and bent-stem trees. Pomegranate trees have a certain degree of cold tolerance, and can overwinter outdoors in North China with a little protection in the leeward and sunny places. In order to make trees grow fast, it is better to plant them on the ground. Pomegranate trees like fertilizer. In addition to applying base fertilizer when planting, they should also apply decomposed thin organic fertilizer every half month during the vigorous growth period in spring and summer. Pomegranate trees grow faster. When the branch thickness reaches about 70% of the ideal thickness, cut the branches short to promote the growth and development of the lateral branches.

3. In the molding stage, when the pomegranate tree basically meets the design composition requirements, the pomegranate stump should be planted in an ornamental basin with appropriate size and style in early spring. Straight stem type and inclined stem type can be planted in shallow oval pots, and curved stem type can be planted in square medium-deep pots. At this stage, it is still necessary to apply more fertilizers appropriately to promote the growth of trees and better improve the shape. On the other hand, it is also necessary to take into account the needs of appreciation. After several years of cultivation, pruning and maintenance, pomegranate bonsai has achieved the goal of viewing flowers in spring and fruits in autumn on the basis of maintaining its appearance (pomegranate does not bear fruit). 4. Preventive measures

Pomegranate trees germinate vigorously and grow new branches several times a year. Generally, robust new branches that grow in spring can form fruiting mother branches, and terminal buds or axillary buds that grow from these branches in the next spring often produce short new branches, among which flowers with terminal buds are the easiest to bear fruit. Buds growing in summer and autumn should be cut off in time. Pomegranate bonsai plastic surgery, often performed before the spring bud, cut off long branches, too dense branches, too thin branches, we should pay attention to keep those robust fruit branches. Pomegranate trees are more fertile than ordinary flowers and trees. When turning the pot, put more fermented hoof pieces or cake fertilizer at the bottom of the pot. Fertilizer containing more phosphorus should be applied during the vigorous growth period in spring and summer. From late April to early June, pomegranate is in bud stage, so it should be fully illuminated and watered less to make the basin soil dry. When the new leaves on the branches wilt slightly, put the pomegranate tree in the shade for 30 minutes, and then pour enough water into the basin. Repeat this several times and buds will appear in about 20 days. After the fruits are put in prison, you should cut off the fruits that don't need too many shapes. A medium-sized pomegranate bonsai can leave three to five fruits. The distribution of fruits should be high and low, sparse and dense, not equidistant. If there are too many fruits, it will affect the results of next year.