Gravel size in dry landscape

Quick answer：

In a dry landscape or 'kare-sansui' style of Japanese Zen gardens, the gravel size typically ranges from 1/8 inch to 3/8 inch (3.2 to 9.5 mm) to create a natural and tranquil appearance. This size allows the stones to be placed closely together to mimic the flowing water of a traditional pond, but without the water itself.