It is quite difficult to arrange a beautiful garden on a site with significant changes in relief. The best option is the construction of retaining walls. This solution allows you to radically transform the appearance of the personal territory. 
Source: ag-gardendesign.ru
Tasks and arrangement of retaining walls
If the entire site is located on the slope of a ravine or hill, it will be quite difficult to rationally use all available soil. In the process of processing the land will gradually slide, which will only aggravate the problem. Retaining walls need to be equipped throughout the site to quickly and permanently solve this problem.
The territory must be divided into separate areas. The retaining walls will act as demarcation structures. The soil level on each individual segment should be aligned horizontally. Retaining walls will prevent the land from slipping during cultivation.
The plot will acquire a ladder-like appearance. Each zone, separated by walls, is a separate small garden or vegetable garden. Separate segments will have the form of steps included in the design of a single large staircase. On each, you can plant different flowers and other plants, shrubs or trees.
There are many ways to construct retaining walls. Selected materials determine the length of service life, practicality and aesthetics of the design. The method allows not only to close the issue of soil erosion, but also to originally zon the site, and to improve its appearance. You can create separate areas for recreation, flower growing, crops, etc.
The creation of retaining walls will lead to a sharp transformation of the appearance of the personal territory. Therefore, you should choose materials and installation methods carefully so that the site is beautiful and functional, corresponding to specific needs. There are many ready-made solutions for the construction of retaining walls. After evaluating different ideas, you can choose the best option for your own preferences and financial capabilities.
Gabion
Gabion is a volumetric construction with a mesh frame filled with stones. The strength of the structure is ensured by the frame in the form of a grid. Reliability and massive appearance are achieved by filling the structure with large stones. You can use stones of different sizes, pebbles and similar materials. 
Gabion, wooden sleepers, stone
Retaining walls made of wooden sleepers
Conventional wooden railway sleepers can be used to construct retaining walls. Due to the special impregnation in the production process, the material has a long service life, does not deteriorate from moisture. There are even wooden sleepers that are protected from fire. From them it is possible to build retaining walls of almost any height. Products are mounted on top of each other using brackets, nails or other suitable fasteners.
Stone retaining walls
A more complicated method in terms of production. Such walls can vary significantly in design depending on the masonry method, the size and shape of the stones used. The main difficulty is that the construction requires masonry skills. But, in terms of aesthetics, practicality and durability, this option is one of the best.
Metal retaining walls
As the main material for the construction, sheet steel is used. The material must have a fairly significant thickness, otherwise it may not withstand the load from a large amount of soil. To strengthen the structure, it is possible to provide the presence of additional supports and stiffeners. To extend the life of the metal, it should be treated with a suitable paint material. 
Metal, professional sheet, large boulders
Profiled retaining walls
Due to the presence of ribs over the entire area, the profiled sheet can withstand a significant load, despite the relatively small thickness. By reliability, such walls are not inferior to analogues of stone and wood. Differ in simplicity of installation. The presence of zinc and polymer coatings provides protection against corrosion.
Walls without shape made of large stone boulders
The stylistic feature of such walls is the lack of a clear shape and a rigid frame. They are mounted from large boulders. Separate stones are set directly on top of each other in 1-3 rows. The gaps between them can be filled with soil and gravel.
Concrete retaining walls
Concrete is one of the most durable and reliable materials. With the construction of the walls, you can give almost any shape. The disadvantage of this method is its high cost, since quite a lot of cement mortar will be required to fill a large area. In order to save walls, you can fill the walls with stones, gravel, broken bricks and similar materials. You can use ready-made concrete blocks that are mounted in the grooves of the support pillars.
