What is “No Mow May?” This new monthly trend for the month of May this year is for the planet health. Although it started in 2019 in the UK, we’ve really only been hearing the term thrown around a lot this year. The idea is that people are allowing their lawns to grow without mowing, watering or fertilizing. Yes, your lawn may look a mess but it’s for a good cause. It helps bees get an early boost with flower growth. It’s estimated that roughly 80% of lawns taking part support about 400 bees per day.