Doff’s 5 in 1 Lawn Fix + Grass Seed is a unique blend of 100% peat free lawn soil, professional lawn top dressing and lawn seed. This will help to level bumps and hollows, invigorates growth of existing grass and thickens with the new lawn seed. This lawn formula can be applied directly onto any type of lawn, large or small from late February until early November. This special formulation will aid improvement of soil structure as a top dressing and rejuvenate tired lawns throughout the growing season.