Monty Don says leave your grass long this winter – and experts say it could be the key to a healthier lawn next year

Daffodils growing in long grass lawn in late winter.

Much like the rest of the gardening guru's wisdom, we're mad about Monty Don's winter lawn mowing advice – and this season, he's encouraging us to keep our grass long.

Many of us wonder when to stop cutting grass for winter, but Monty Don is all about embracing a long lawn over the colder months. And while it might sound like one of the more out-there lawn ideas, there is a method behind Monty's apparent madness. We promise.