No Mow May started as a grassroots conservation movement asking homeowners to put down the mower for the entire month of May. The idea: let early-blooming plants like dandelions and clover grow freely to give bees, butterflies, and other pollinators a critical food source at the start of spring.
In Minnesota, the movement has caught on — some Twin Cities municipalities have even pledged support for it. But for homeowners who care about their lawn, No Mow May raises real questions: What happens to your grass if you skip May mowing? Does it lead to more weeds? Is there a way to support pollinators without sacrificing your turf?
What Is No Mow May?
No Mow May is a campaign that originated with UK conservation nonprofit Plantlife and has since spread across North America. Participants agree not to mow during May, allowing low-growing flowering plants to bloom and provide nectar for early-season pollinators.
In Minnesota, this matters. Bees, monarch butterflies, and native pollinators all need food sources in early spring — and a tightly maintained lawn offers almost nothing. Letting dandelions, clover, and low-growing wildflowers bloom temporarily creates a patch of forage for these species during a critical window.
Several Twin Cities communities, including Bloomington and Plymouth, have embraced No Mow May and encouraged residents to participate. The University of Minnesota Extension has published research showing measurable increases in bee activity in yards that skip mowing for the month.
What Does No Mow May Actually Do to Your Minnesota Lawn?
Here's the honest picture: skipping mowing for a full month has real trade-offs.
Potential benefits:
- Dandelions and clover provide early nectar for native bees and monarch butterflies
- Gives grass roots a brief break from cutting stress during active spring growth
- Reduces mower emissions during the month
Potential downsides:
- Weed seed spread — dandelions going to seed in May produce hundreds of seeds per plant. A yard full of seeding dandelions in May equals significantly more weeds in June and July
- Lawn appearance — tall, uneven grass can violate HOA rules or local ordinances, and may look out of place in otherwise maintained neighborhoods
- Scalping risk — cutting 5–6 inches of growth in one pass in June shocks the turf and browns it out
- Fungal pressure — dense unmowed grass holds moisture, creating conditions for lawn disease — particularly in wet Minnesota springs
Minnesota's May is unpredictable. A wet, warm May can send grass surging to 6 or 7 inches quickly. A dry May is more manageable. Knowing your lawn's growth rate helps determine whether a full no-mow month is realistic.
How to Participate Without Wrecking Your Lawn
If you want to support pollinators but also care about your lawn's long-term health, here are smarter approaches:
Designate a No Mow zone. Let one section grow freely — an unmowed strip along a fence line, a shaded corner, or a garden border. This supports pollinators without giving weed seeds free rein across your entire yard.
Mow high, not no-mow. Set your mower to 3.5–4 inches and keep mowing, just not cutting short. Taller grass shades the soil (reducing weed germination) and low-growing clover and violets can still bloom at that height.
Add a native pollinator planting. Native plants like black-eyed susans, coneflowers, and prairie dropseed provide far more pollinator value than a month of unmowed turf — year after year. Converting even a small bed to native plants is a better long-term investment for pollinators.
Time your weed control around it. If you plan to participate, apply broadleaf weed control in April before dandelions bloom and set seed. Resume your program in June when mowing restarts.
The Weed Control Problem You Need to Plan For
Many No Mow May guides skip this part: dandelions that set seed in May create hundreds of seeds per plant. If you have an established dandelion population and let them all flower and seed through May, you're setting up significantly more pressure all summer.
The solution isn't to avoid No Mow May — it's to build your treatment schedule around it:
- April: Apply pre-emergent herbicide for crabgrass and treat existing broadleaf weeds before they bloom
- May: Participate in No Mow May with a designated-zone approach if desired
- June: Resume mowing at proper height (never remove more than one-third of the blade at a time); apply post-emergent broadleaf weed control for any dandelions or creeping charlie that spread
A professionally timed lawn care program from Lawnworks can be designed around your preferences — including scheduling around No Mow May if that's important to you.
What Lawnworks Recommends for Twin Cities Homeowners
We respect homeowners who want to support pollinators. Here's our honest guidance for Minnesota lawns:
Get pre-emergent down in April. The most important spring lawn care move is a well-timed pre-emergent application before soil temps hit 55°F — typically late April in the Twin Cities. This stops crabgrass and annual grassy weeds before No Mow May even begins.
Fertilize in late April. A balanced spring fertilizer application before May keeps your turf thick and competitive — your best natural defense against weed encroachment.
Resume mowing gradually in June. If you do participate, start mowing again by cutting no more than one-third of the blade height per session. This prevents scalping shock on grass that's grown several inches.
Consider a native pollinator strip as a permanent solution. Instead of skipping mowing annually, ask us about low-maintenance alternatives that create real pollinator habitat year-round without sacrificing your lawn.
Lawnworks is locally owned and has served 67+ Twin Cities communities — including Blaine, Andover, Ham Lake, Coon Rapids, Ramsey, Anoka, and more — since 2016. We're licensed by the Minnesota Department of Agriculture, fully insured, and carry a 4.9/5 Google rating based on 200+ reviews.
Ready to protect your lawn heading into May? Get a free instant estimate or call us at (612) 399-9482 — we'll put together a spring program that works for your yard and your goals.