Four Seasons is a professional grade slow release granular fertiliser. It is the style of fertiliser used by professional golf courses and sportsfield professionals designed to provide rapid and prolonged plant growth and greening effect. Slow release nitrogen and potassium will continue to feed the lawn for up to 16 weeks. One of the most practical benefits of Lawnporn Four Season is the superior 150SGN granule size. The smaller granule size reduces the chance of fertiliser prills being damaged or picked up by mowing after application. In addition, the smaller granule will provide better coverage over the turf surface when applied offering superior performance.