Hazelnut shells work great in many locations within your gardens. They can be used around perennials and vegetables in your raised gardens, flower beds, as a ground cover, pathway surface or anywhere you would have used bark mulch in the past.
Using shells will help prevent slug damage to your plants and also reduce the amount of landscape maintenance by cutting down the amount of weeds within the beds. When the shells are used as a path surface they also double as a barrier for slugs and snails. Hazelnut shells also stay dry on top where bark mulch gets soggy and provides a great breeding ground for fleas.