Removing Moss from a lawn

When to scarify your lawn

You should only need to scarify your lawn once a year – either in spring or early autumn, when the grass has a chance to grow back and recover after being scarified. You should only scarify your lawn during a period of ideal weather – when there is sunshine, warmth and some rain. If you scarify when there has been heavy rain, or extreme conditions like a drought, you could do more damage than good, as the grass will not be able to grow back for a long time after you have scarified it.