There are not many landscaping jobs which do not involve concrete work. Concrete is a universally accepted construction material, but it must be correctly engineered and specified to be durable and safe.
At Grow Master we frequently build pathways and driveways with a concrete base, appropriately reinforced with steel mesh for strength. Retaining walls can be formed from concrete, provided that the correct footings and drainage system is also installed.
While there are various surface finishes and textures which can be applied to concrete products, there are ample examples of landscape work where concrete forms a base to which other materials are used for the visual exterior.