Spring hits fast in Minnesota — and if you wait too long to start, you're already playing catch-up. Here's what Twin Cities homeowners should be doing right now, step by step, to set up a healthy, weed-free lawn for the season.
Step 1: Clean Up and Assess (Late March–Early April)
Before anything else, get out and look at your lawn. After a Minnesota winter, you'll often find:
- Matted grass from snow mold — rake it gently to improve airflow
- Bare or thin spots from winter kill, heavy traffic, or ice damage
- Debris — sticks, leaves, and other winter accumulation blocking new growth
Avoid raking too aggressively while the ground is still soft. Wet soil compacts easily, and deep raking can pull up grass roots that are just starting to wake up. A light pass with a fan rake is usually enough at this stage.
This assessment helps you prioritize: do you need to seed bare spots? Is there a drainage issue causing standing water? Are there early weed problems already? Note it all now.
Step 2: Apply Pre-Emergent Weed Control (Late April)
This is one of the most time-sensitive steps in spring lawn care. Pre-emergent weed control works by forming a chemical barrier in the soil before weed seeds germinate — once crabgrass and other annual weeds have sprouted, it's too late.
The trigger in Minnesota is soil temperature: you want to apply pre-emergent when soil temps consistently reach 50°F at a 2-inch depth, which typically happens in late April in the Twin Cities.
Apply too early and the product degrades before the germination window. Apply too late and you've missed your chance. For most Twin Cities homeowners, the window falls between April 20 and May 10, though a late spring can push it back.
Lawnworks applies pre-emergent weed control for homeowners across the metro, including Blaine, Plymouth, Roseville, and Eagan.
Step 3: First Fertilizer Application (April–Early May)
Early spring fertilizing gives your lawn the nitrogen it needs to green up and start strong. In Minnesota, wait until the grass is actively growing — typically when you've mowed at least once — before applying.
Don't fertilize too early. Putting down fertilizer when the soil is still cold just pushes nutrients into the ground before the grass can use them, and risks encouraging weeds to germinate faster.
Lawnworks' lawn fertilizing program is calibrated throughout the growing season — not just a one-time application. The right nutrients at the right time produce measurably better results than a single heavy feeding.
Step 4: Spot-Treat Early Broadleaf Weeds
As temperatures climb, dandelions and other broadleaf weeds wake up quickly. Spot-treat with a post-emergent herbicide when you see them — early treatment is easier and more effective than waiting until they've seeded.
If weeds are widespread, a broadcast application may be more practical. Either way, timing matters: post-emergent weed control works best when weeds are actively growing, which in Minnesota typically starts in mid-to-late April.
Check out our guide on controlling creeping charlie — one of the most common (and frustrating) lawn weeds in the Twin Cities.
Step 5: Plan Around Bare Spots
If you have bare patches to fill, spring is tricky. Pre-emergent applications also block grass seed from germinating — you can't apply pre-emergent and overseed at the same time in the same area.
Your options:
- Skip pre-emergent on bare areas and accept some weed pressure, then overseed those spots
- Wait until fall for overseeding — fall is actually the better time in Minnesota anyway (cooler temps, more consistent moisture, less weed competition)
For large-scale renovation, core aeration followed by overseeding in late August or September is the most effective approach.
Step 6: Schedule Mosquito Control Early
By mid-May, mosquito season is underway in the Twin Cities. If you want barrier spray treatments, schedule before the season starts — most customers who wait until June are already dealing with an active mosquito problem.
Lawnworks provides mosquito control throughout the metro, including Woodbury, Maple Grove, and Andover. Treatments last 3–4 weeks per application.
Get the Timing Right — or Let Lawnworks Handle It
Minnesota's growing season is short, and every step in this checklist has a narrow optimal window. Miss pre-emergent timing by two weeks and you're dealing with crabgrass all summer. Skip the first fertilizer application and your lawn starts the season behind.
Lawnworks has been helping Twin Cities homeowners get the timing right since 2016. We're locally owned, licensed by the Minnesota Department of Agriculture, and carry a 4.9/5 Google rating from 200+ customers.
Ready to get started? Call us at (612) 399-9482 or get a free estimate online →