On the basis of the unique natural tree shape of the tree itself, a little manual adjustment and intervention are carried out. Therefore, the trees grow well and are robust, which can give full play to the ornamental characteristics of this tree species.

Second, artificial plastic surgery:

1, geometric modeling: the tree species used in this modeling method must have strong germination and branching ability and be resistant to pruning.

2. Irregular shape:

⑴ Wall style: This modeling method can often be seen in European classical gardens. Mainly for greening the walls. Common ones are U-shaped, fork-shaped, rib-shaped and fan-shaped. This kind of plastic surgery should first cultivate a low trunk, arrange the main branches symmetrically or radially on the left and right sides of the trunk, and keep the branches on the same plane.

⑵ Sculpture: Choose tree species with dense and soft branches, small branches and leaves and pruning resistance. Using lead wire, rope and other tools and twisting, according to a certain object shape, its main branches and side branches form a skeleton, and then the twigs are tightly hugged by the traction of the rope, or directly trimmed according to the imitated object, thus cutting into various sculpture shapes.

Third, natural and artificial mixed shaping is the most widely used in flowers and trees. According to the requirements of biological characteristics and ecological conditions of trees, trees are pruned into tree shapes that are in harmony with the surrounding environment, usually including natural cup shape, natural joy shape, multi-dry shape, multi-dry shape, medium-dry shape and so on.

1, without trunk shape:

⑴ Natural cup shape: This shape is an improved tree shape of cup shape, which is both "three strands, six forks and twelve branches".

⑵ Natural Joy: This tree shape is an improvement and development of natural cup shape, with three main branches and two to four individual trees. The main branches are scattered on the trunk (not as strict as cups). This shaping method is relatively easy, and it conforms to the natural development law of trees, with strong growth potential, strong skeleton and three-dimensional flowering. At present, this molding method is mostly used for trees with weak dryness and strong yang in gardens.

⑶ Multi-trunk shape and Multi-trunk shape: These two shaping methods are basically the same, except that the low trunk is called multi-trunk shape; What has no trunk is called multi-trunk shape. At present, this modeling method is widely used in begonia.

⑷ Conglomerate: This plastic method is quite similar to multi-trunk or multi-trunk, except that the trunk is very short or not, and the remaining branches are numerous and clustered. This shape is mostly used for shrubs with strong germination ability, such as Rosa roxburghii, Prunus mume, Begonia, Cinnamomum camphora and hibiscus flowers.

5] Scaffolding modeling: This is a common modeling method for lianas.

2, there is a trunk shape:

(1) Layered: arrange the main branches in layers on the trunk, with a certain spacing between layers, and the main branches on each layer are preferably adjacent, but not adjacent.

⑵ Evacuation shape: Different from the layered modeling method above, its main branches are randomly arranged on the middle trunk.