A natural, organic conditioner for soils and lawns, Calcified Seaweed helps break down heavy soils and encourages the development of beneficial micro-organisms. It improves soil structure, helping plants to develop stronger root systems leading to healthier and more vigorous plant growth.Rich in minerals it can be used as a lawn dressing early in Spring. As a soil conditioner it should be applied once every three years and lightly raked or hoed into the soil.Not suitable for use with ericaceous or acid loving plants.