It's a natural plant and soil treatment boosted with a fast acting fertiliser. It's a rich source of seaweed, nutrients, trace elements and natural composts to revitalise soil health and promote healthy growth and larger yields of tastier fruit and citrus. Seasol plus Nutrients All Purpose is enhanced with seaweed to help stimulate a strong root system and healthy plant growth. It can also assist plants to cope with heat, drought, frost, pests and diseases. Boosted with a rich source of natural compost and organic matter that enriches the soil, it helps to improve the soil structure and worm and microbial activity. It also helps to improve soil moisture retention and nutrient uptake.