Planet Turf Castaway 3-0-1 is 100% organic and non-toxic. It is a granulated residue of tea seeds (camellia spp.) after oil extraction. It contains a minimum of 18% Saponin and is less than 7% moisture. Saponin is a natural compound with foaming properties and affects surface tension of liquids. Castaway 3-0-1 contains protein, nitrogen, organic fiber, and is a rich source of antioxidants. It is applied at 6-12 lbs/1000 sq. ft., followed by irrigation or rain to dissolve the pellet and move water 1-5 inches deep. The pellet breaks down quickly and can be used on turfgrass, gardens, nursery and landscapes.