The wind blowing through a Birch tree or water flowing over rocks, both help to create a sense of motion and sound in the garden. Foliage that quakes and rustles signals that the garden is alive and well. And don't forget the birds! There are many plants that attract birds to your garden. And they not only give you a little melody, but they also help eliminate many pesky insects.
Wind rustling through grass and leaves creates a magical feeling in the garden. Grasses and water bring sound and movement to any garden. Miscanthus 'Morning Light', a tall variegated grass, adds motion and sound to this garden path.
Also, this fountain from an old French estate, adds a gentle trickle of sound and attracts wildlife.
Grass is a great way to add motion to the garden and there are many varieties to fit a garden of any size.