Lush Lawn Underlay combines some of the best quality ingredients to form a base soil that holds its shape, allows for drainage and provides all the essential ingredients to give your turf the best start possible. With Gypsum, Ash & Complete Trace Elements added, it is the perfect start to provide a good healthy root system & establish your lawn. We always recommend at least 50mm in depth, although 75mm is preferred. Lush Lawn Underlay is also available in a 20kg bag if you only require a small amount.