It is well-known that an outdoor lifestyle with moderate physical activity is linked to longer life, and gardening is an easy way to accomplish both.

“If you garden, you’re getting some low-intensity physical activity most days, and you tend to work routinely,” says Buettner.

He says there is evidence that gardeners live longer and are less stressed. A variety of studies confirm this, pointing to both the physical and mental health benefits of gardening.

Source: Gardening could be the hobby that helps you live to 100 – BBC Worklife