Applying a top dressing to your lawn is appropriate when it needs a boost of nutrients, is uneven or contains holes.
You should undertake top dressing to repair holes or uneven lawn just prior to the growing season, usually the beginning of Spring; not when the lawn plants are in their dormant phase or you run the risk of damaging or even killing the lawn entirely. Top dressing for nutrients can be applied at any time. Do not top dress on an annual basis regardless of popular belief as this will just accelerate the build-up of thatch. Avoid top dressing if rain is predicted as the wet weather will make the dressing difficult to deal with and make levelling troublesome. READ MORE: