Overview

• The Royal Horticultural Society advises scarifying in October or early November when grass is growing strongly to remove moss.
• RHS guidance recommends a spring-tined rake for small patches and hiring a mechanical scarifier for larger areas.
• Media reports cite JoesLawnCare.co.uk’s recipe of 60 ml washing-up liquid mixed into 4.5 litres of water, applied directly to moss.
• The DIY method is advised for dry windows of at least 24 hours, with treated moss expected to turn orangey-brown within a day before being raked out.
• Coverage notes concerns that commercial moss killers can harm insects, worms and bees, while acknowledging the dish-soap approach is reported advice rather than an official endorsement.