Chase SM4 is a blend of plant derived nutrients & Chase seaweed extract. It is a complete organic, animal-free biostimulant & plant food with an NPK analysis of 5-2-5, together with Calcium, Iron & Magnesium & other trace elements, plus the benefits of seaweed. For use on vegetables, fruit, flowers & lawns. An excellent all-round plant food particularly good for heavy feeders such as tomatoes & cauliflowers.