No Mow May sparks local debate

Lawns are having a small identity crisis. For years, No Mow May sounded like an easy win — put the mower away, let dandelions and clover bloom, help the bees. But this spring, the debate got sharper. Cities in Michigan are rethinking the policy, some Wisconsin communities have already moved on, and ecologists keep making the same point: a shaggy lawn is not the same thing as good habitat. ### Where did this idea come from? No Mow May started in the U.K. through Plantlife in 2018. The original logic fit British lawns pretty well, because many of them still act a bit like old grasslands and can reveal native flowers if they are left alone. The slogan then spread fast in North America, where it became a simple public-facing way to talk about pollinators. The catch is that American lawns are often built very differently. (wtop.com) ### Why are people pushing back now? Because the evidence for “don’t mow for one month” is thinner than the slogan makes it sound. Michigan State horticulture expert David Lowenstein said the science is not there to show a meaningful impact on bees from a brief pause alone. That skepticism is now showing up in policy — East Lansing has shifted toward year-round rules for intentional pollinator landscapes, not just a one-month enforcement break. (nationalgeographic.com) ### What’s wrong with just letting grass grow? Sometimes, not much. But often, a U.S. lawn that gets taller mostly produces more non-native weeds, not a mini prairie. National Geographic’s recent explainer lays out the core problem: dandelions and similar lawn flowers can feed some insects, but they are not automatically high-value food for native pollinators everywhere, and they may lack the nutritional profile native species evolved with. Basically, taller weeds are not the same thing as better biodiversity. (wtop.com) ### Don’t bees still visit dandelions? Yes — and that is part of why the debate gets confusing. Pollinators absolutely use some lawn flowers. Wisconsin Extension says lawns with low-growing flowers can provide nectar and pollen, especially if they are mowed higher than 3 inches and less often. But Penn State’s pollinator researchers make the bigger point: in spring, bees often get much of their pollen from flowering trees like maple, oak, willow, pear, and apple, not from the average weed-filled lawn. (nationalgeographic.com) ### So what are cities changing? They are moving from “stop mowing” to “mow differently” or “plant differently.” Appleton, one of the early U.S. boosters, shifted to Slow Mow Summer in 2024 and now emphasizes a 4-inch mower height, mowing only when lawns reach 6 inches, cutting later in the day, and adding native flowers. East Lansing’s newer rule allows taller plantings if they are intentional, defined, native-focused, and maintained. That is a very different message from “just let it all go.” (hort.extension.wisc.edu) ### What should homeowners actually do? The most useful advice is less dramatic and more effective. Mow less often. Mow higher. Cut back pesticides. Add flowering plants that can handle your region. Better yet, shrink the amount of turf you have and replace some of it with native trees, shrubs, and perennials. University of Maryland Extension now flatly promotes lawn alternatives, which tells you where this conversation is heading. (wausaupilotandreview.com) ### Is this also about looks and neighborhood rules? Very much so. No Mow May worked because it was easy to join and easy to explain. But a messy-looking yard can trigger complaints, and tall grass can raise worries about ticks, neglect, or property values. That is why newer local rules focus on intentionality — clear borders, defined beds, and visible care. People are usually more accepting of habitat when it looks deliberate. (hort.extension.wisc.edu) ### What’s the real takeaway? No Mow May is still useful as a cultural nudge. It gets people to question the perfect green lawn. But turns out the better version is not “never mow.” It is “stop treating turf as the default,” then build a yard that feeds pollinators for the whole season, not just for one month in May. (wausaupilotandreview.com) (wtop.com)