Choosing the right area for your rock garden is essential in making sure that your garden will be successful. You will need to check that the area for your garden has good drainage, since rock- and mountain-growing plants (which is what you will want to plant within your rock garden) do not grow well in water-bound soil. The best base for a rock garden is a sloping area where the water from the garden can run off.
The main soil area should be gritty rather than composite in order to simulate the natural environment of the plants. You may be surprised to learn that rock gardens do better without the incorporation of compost or fertilizer. That’s good news, because it means less work for you!