Or you can buy special wooden acoustic barriers that soak up unwanted sound, using the same technology as fencing on motorways. They can be expensive but you will enjoy the benefit for years to come. The further away the noise, the higher the fence should be.
An eye-level fence at 1.5m can instantly reduce sounds from next door. If you have very noisy neighbours or a busy road or park nearby, try a 3m barrier. But you’ll need to fence your entire garden because noise can travel around a barrier. Bamboo not only soaks up sound but its rustling acts as a sort of white noise distraction. Nandina domestica, known as heavenly bamboo, can be used to create a thick, flowering barrier. Or try fishpole bamboo, which works brilliantly.