Conventional gardens are also called holistic, architectural, geometric and symmetrical gardens. The whole garden and scenic spots are under the control of people, showing the beauty of geometric patterns. The coordination of garden themes is geometric in composition, based on a central axis in plane planning, and symmetrical in overall layout. Geometrical shapes are often used in garden division, and the garden lines and roads are mostly linear; Square, pool and flower bed take geometric shapes; Most plants are symmetrically arranged, the number of plants and row spacing are obviously uniform, flowers and trees are trimmed into certain patterns, and the roadside trees in the garden are neat, straight and beautiful, with developed crown lines.