In Shan Ye black pine forest land, natural aerial seeding seeds were selected to cultivate stocky wild black pine seedlings, especially old stumps growing in crevices. After digging, cultivate in the open field first, and then go to pot modeling when the root system is developed and the branches and leaves are lush.

Basin selection

The branches and leaves of black pine are dark green, so it is appropriate to use medium-deep purple sand pottery basin, small bonsai can use glazed pottery basin, and large bonsai can use alunite or marble chiseled stone basin. The shape of the basin can be determined according to the type of tree. Generally, there are many rectangular basins or elliptical basins, and the cliff model should adopt deep thousand-tube basins or medium-deep square basins.

Use soil

Black pine is not strict with soil, and loose and deep neutral soil or slightly acidic soil is suitable. It is best to use mountain soil or rotten leaf soil mixed with 20% sand as culture soil for potted plants. The soil should not be too fertile to control growth.

plant

It is better to go to pot before germination in March. Plants should bring overnight soil. Roots that are too long can be properly cut short, so that when planted, the roots will not bend in the pot.

process

The overall attitude treatment of black pine is mainly climbing and binding, supplemented by pruning. Climbing can be done with wire or brown wire. To cultivate black pine bonsai, if young saplings are used as materials, it is best to use 2-3 years old robust saplings. The trunk is bent to a certain extent, the redundant branches are cut off, then the remaining side branches are climbed into a flat or drooping shape, and then processed year by year, and it can be shaped in 3-5 years. Black pine stumps excavated in Shan Ye can be processed in flowerpots after one year of embryo culture. Some stumps have thick trunks that are not in harmony with the lateral branches, so they can be cut down appropriately and cut off a part. According to the needs of modeling, some dead branches can be retained to show the ancient posture. The full posture processing of black pine should be carried out from 65438+February to March of the following year. At this time, it is in a dormant period, and the sap flows slowly, pruning and shaping, and there is no danger of resin overflowing, which has little effect on the growth of trees. In the growing period, plastic surgery can only rely on climbing, not pruning.

tree form

Black pine bonsai can be made into straight dry type, inclined dry type, bent dry type and cliff type, and it is also suitable for making stone-pasted bonsai and wall-hung bonsai. Black pine has typical morphological characteristics of pine trees, and its modeling requirements can refer to the modeling of five-needle pine. But the needles of black pine are thick and long, so it is not necessary to cut them into pieces. The growth of branches and leaves can be controlled by picking buds.