Ku su shui ju mao

Quick answer：

Ku su shui, or 'dry landscape water,' refers to a traditional Japanese Zen garden style that uses stones arranged to represent mountains and water. Ju mao, or 'large trees,' might refer to the inclusion of large trees in such gardens, though this is not a standard feature of typical Zen gardens. These gardens are known for their minimalist approach to representing natural landscapes through carefully placed stones and raked gravel.