Zen gardens, also known as karesansui (枯山水) comes from the buddhist monk group in Kyoto. The garden was made in the buddhist temple. The garden served as a place for meditation and a space where they must keep tidy; cleaning the garden was part of their monk training. Every morning the monks must clean their garden and temple.
The garden consists of boulders and fine gravel. There are two types of ways these elements are used to represent the land around us. First, the rocks can represent mountains and gravel can be used to imitate the clouds. Another style is using boulders as islands and gravel as the ocean.
Japanese Landscaping can do all that is stated above.