Brunnings Coir Feed & Mulch Block is a premium-grade coir mulch containing fertilisers for added growing power. Coir creates an ideal mulch because it helps plants stay moist in hot weather, while keeping the soil temperature higher in colder months. It has high water-holding capacity, so that when it takes in water, it hold it around shrubs, plants and on garden beds longer. Since it contains fertiliser, Brunnings Coir Feed & Mulch will release nutrients to your plants for months.