Rocks can be used in several ways in landscaping. Rocks are utilized to make retaining walls, foot paths, sitting areas, define a pool area and make planters for flowers and also trees.
Types of rocks used for landscaping are:
- Sandstone: Sandstone is strong and is available in buff (yellow-brown), brown, green, yellow, gray, blue, black and pink colors. This is mostly utilized for retaining walls and elevated planting areas for flowers and trees. Natural sandstone is well suited for both modern and traditional landscaping backgrounds. Sandstone is formed by laying down the sand and burying. After a long time, it will be compressed into stone.
- Slate: Slate is generally available in black, green and red colors. It is one among the strongest of the landscaping stones, making it ideal for walkways. As it is water resistant it is also very much suitable for pool areas. Slate is a softly grained sedimentary rock which is made up of clay or volcanic ash. Slate is very strong and can resist heat.
- Marble: Marble is generally available in pink, white, black, yellow and brown colors. It is strong and has the ability to absorb water. Marble is generally utilized to build pavers and retaining walls. Marble is metamorphosed limestone made from pure calcite, which is a form of calcium.
- Limestone: Limestone has very small capacity to absorb water. It is widely used to build retaining walls and is available in gray, black, white and buff. Limestone is a sedimentary rock made of calcium carbonate. Pure limestone will be white. Other colors are produced by adding impurities such as clay, sand, organic remains, iron oxide and other materials.
- River Bed Pebbles: River bed pebbles will have smooth surfaces as the river water washes over them repeatedly. They comes in off-white, gray, pink, brown and green colors, and the shapes comes in round, oval or flat. The pebbles are used for flower beds for decoration or like a mulch, in water sources and in walkways.