No Mow May and what comes after

No Mow May was a useful gateway drug. It got millions of homeowners to look at their lawns as habitat for a few weeks a year. The real gains show up when the principles are extended past that first month into a permanent low-mow, low-input approach.

What No Mow May actually does

Skipping mowing for four to six weeks allows dandelions, clovers, and self-heal to bloom and provide critical early-season forage for solitary bees and bumblebee queens starting new colonies. Bee visitation counts on unmowed lawns are typically several times higher than on mowed comparisons.

The problem with reverting in June

Cutting suddenly on June 1 does two things wrong. It hits pollinators with a sudden loss of the forage they had adapted to, and the shock of scalping regrown grass stresses the turf, undoing many of the soil-health gains.

The better pattern is to raise your mowing height for the rest of the season — 3.5 to 4 inches — and to mow less frequently. Grass is healthier, drought-tolerant, and outcompetes weeds better at that height.

Toward a real eco-lawn

Overseed cool-season lawns with white clover, self-heal, and micro-clover blends. Reduce mow frequency to every 10 to 14 days. Stop fertilizing. Stop watering unless drought is severe. Within two seasons the lawn resembles the diverse turf that supported far more wildlife before postwar chemical lawn care.

Measuring the wildlife return

The pollinator uptick is visible within weeks. The invertebrate and small-mammal uptick unfolds over a couple of years. Soil eDNA before and after a low-mow conversion consistently shows a richer arthropod and fungal community.