No Mow May' is all about putting the lawn mower away and leaving the grass to grow, and in amongst the grass, those plants that are native wildflowers can actually bloom and this can provide food resource for bees and other pollinating insects. So the idea is to to just let that native plant diversity that's already there flower and support the native wildlife," explains Prof Jane Stout. "You can you can become a conservation hero by doing absolutely nothing."
If you're worried about what your neighbours might think when they see your "scraggly" lawn, one thing you can do is still mow around the edges so that it's clear your lawn is still being looked after, says Stout. The other thing you can do is put up a sign to explain to people what you're doing.