Precast concrete is, as the name indicates, concrete that has been formed ahead of time. That is, rather than mixing and pouring the concrete on the job site, where a variety of factors such as weather, uncertain worker skill, and so on can negatively affect the outcome, the forms are created in a factory (normally called a precast plant) under controlled conditions by workers who specialize in working with the material. The end result is uniform products that are almost always free of defects.
The types of landscaping products that are made from precast concrete include almost anywhere natural stone would be used. For example, walls, whether decorative or functional (retaining walls), can benefit from the uniformity of the precast slabs as well as the many colours, textures, and shapes that can be realized. Precast concrete is very cost-effective, as well. Paving stones, pathways, steps, and planters are all additional products where the use of precast concrete is a wise choice. Garden edging, deck supports, and other uses are also quite common. For this reason, it is probably a good idea to invest some time (and perhaps a few dollars) in a landscape design program.
Landscape designers know the value of precast concrete products well. These versatile building materials allow them to exercise their imaginations and realize beautiful results within a budget. For example, building a wall with natural stone is time-consuming and expensive, assuming you want the wall to be built of complementary stones. Creating precast concrete slabs with surface detailing that produces the same effect is relatively simple - and the slabs will interlock nicely to create a seamless whole with much less construction effort (although the use of construction equipment will be required if the slabs are large).