For a charming coastal cottage garden, place wind vanes in various spots to create a whimsical atmosphere. Opt for wind vanes designed as lighthouses, anchors, or shells to enhance the coastal theme. The wind vanes will add a touch of nostalgia and create a focal point in your garden. Plant a mix of colorful flowers, such as hydrangeas, daisies, and roses, to create a vibrant and inviting space. Add cozy seating areas where you can relax and enjoy the gentle sea breeze.