Garden expert says this one task will create a thicker and greener lawn — and September is the perfect month to do it

Green grass and healthy lawn.

As September begins, I’m noticing that my backyard is looking a bit peaky after a hot, dry summer. But, as all gardeners know, there are still jobs to be done, even though the flowers are turning and the leaves are beginning to fall.

A much-loved garden expert in the U.K., Monty Don, has revealed that even though the temperatures begin to cool, there are plenty of jobs to keep you busy in your yard.