No Mow May encourages homeowners to stash the lawn mower each spring and let flowers and grass grow for pollinators and water retention. And if your neighbor’s lawn already looks like a wildflower field most of the time, it could be more intentional than passersby might assume.

The movement has expanded to “Let It Bloom June” and the fall version: “Leave the leaves.” Conservation and horticulture groups say year-round low-mowing while selectively leaving native plants to grow can save huge amounts of drinking water and lead to lasting and impactful ecological changes.

The movement is popularized by groups such as Plantlife, a conservation organization based in England.

American lawns, based on English and French traditions, are increasingly seen as a wasteful monoculture that encourages an overuse of pesticides, fertilizer and water. Outdoor spraying and irrigation account for over 30% of a U.S. household’s total water consumption, and can be twice that in drier climates, according to the Environmental Protection Agency.

The No Mow effort does encourage people to think more about biodiversity in their yards, and many local nature organizations provide guidance on picking noninvasive plants that fit each region's climate and precipitation levels.

Reducing mowing encourages longer-rooted native grasses and flowers to grow, which breaks up compacted soil and improves drainage, “meaning that when it rains, more water is going to be captured and stored in lawns versus being generated as a runoff and entering into our stormwater system,” said Jason Sprouls, urban waters program manager for the Cumberland River Compact.

Nashville homeowner Brandon Griffith said he was just tired of mowing when he decided years ago to wait and see what comes up. Then he consciously added flowering plants to attract bees and bugs. Now he sees so many insects and pollinators all over his garden that the neighbors’ kids come over to look for butterflies.

He said he’s never heard a complaint—in fact, some of his neighbors also stopped mowing for a month each spring.

“I just enjoy coming out and walking around,” said Griffith. “And looking at it, it’s kind of peaceful. It’s kinda relaxing.”

This article was provided by The Associated Press.