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Most weed control in Minnesota still leans on synthetic herbicides, and plenty of Minneapolis homeowners would rather not spray those across the yard where their kids, pets, and pollinators spend the summer. We understand that hesitation, because it’s the same one that shaped how we work. Effective weed control no longer has to come from harsh chemistry.
At Minnehaha Falls Landscaping, we offer organic weed control built around chelated iron, an iron-based herbicide that targets broadleaf weeds while leaving your turf unharmed. It’s a core part of how we approach organic lawn care across the Twin Cities: knock back the weeds, protect the living soil underneath, and build grass thick enough to crowd weeds out on its own.

We are long time customers of Minnehaha Falls Landscaping. As I sit on my porch watching the monarch butterflies enjoying my pollinator garden I appreciate the service we’ve had over the years. It started with their snow removal service as we decided doing it ourselves was too much. Next up were the pollinator gardens and replacing our lawn with no mow bee gardens. This year we added garden maintenance to the mix so gardening is not a chore but is enjoyable. We recommend them very highly.
Minnehaha Falls landscaping did an amazing job transforming our yard. They added beautiful plantings that made the yard feel fresh and new. The lighting they installed really makes everything shine at night. They were professional, creative and very easy to work with. We have had so many compliments from our neighbors! I highly recommend to anyone!
– Laura J.
Organic weed control is a weed management approach that skips synthetic herbicides like 2,4-D and dicamba in favor of lower-impact alternatives. Our approach centers on chelated iron, a selective, iron-based product we use in our organic lawn care program and can apply around families, pets, and pollinators with confidence.
“Chelated” simply means the iron is bound to a molecule that keeps it stable and easy for plants to absorb. When we apply it, broadleaf weeds take up a concentrated dose of iron they can’t tolerate. It overwhelms them and breaks down their tissue, while your grass absorbs the same iron harmlessly, the way it would any other nutrient.
The selectivity comes down to plant structure. Broadleaf weeds like dandelion, clover, plantain, black medic, and creeping charlie have wide, exposed leaves that soak up far more iron than the narrow blades of turf grass. That difference is what lets us damage the weed while the lawn shrugs it off. In a Minnesota lawn, chelated iron works especially well because it:
In short, the same application that overwhelms a broadleaf weed is barely noticed by your turf, which is exactly what makes chelated iron a fit for an organic lawn.
Conventional weed spraying relies on synthetic phenoxy herbicides. They’re effective, but they carry trade-offs many homeowners want to avoid: re-entry restrictions that keep kids and pets off the lawn, drift onto gardens and pollinator plants, and repeated chemical inputs that can wear on soil life over time.
Chelated iron gives us a different set of trade-offs. It’s selective and fast-acting; it breaks down quickly and leaves no synthetic residue behind, though established, deep-rooted weeds may need more than one application to fully knock back. For most Twin Cities lawns, that’s a trade we, and the homeowners we work with, are glad to make.
Choosing chelated iron over conventional spraying offers benefits that go well beyond a tidier lawn:
For many of the homeowners we work with, the deciding factor is simple: they want a lawn they can walk barefoot on, garden beside, and let the dog nap in, without wondering what they just sprayed. Organic weed control lets them manage weeds and keep that peace of mind.
Chelated iron works quickly and visibly: within hours to a day or two, treated broadleaf weeds darken and blacken as the iron takes effect. Smaller weeds often collapse after a single pass, while established perennials like creeping charlie usually need repeat applications, and you may see a temporary darkening of the surrounding grass that fades as the turf greens back up. Because we use no synthetic herbicides like 2,4-D or dicamba, the wait to get back on your lawn is short. We’ll let you know once the application has dried, typically a matter of hours, and then the yard is ready for kids, pets, and normal use again.
Chelated iron performs best in Minnesota’s cool spring and fall windows, when broadleaf weeds are actively growing and most vulnerable, so we build most schedules around those seasons with an initial application followed by one or more targeted follow-ups.
Cost depends on your lawn’s size, how heavy the weed pressure is, how many applications you need, and whether weed control is standalone or part of a broader organic lawn care program, so rather than quote a flat rate, we assess the lawn first and give you a clear plan and price up front, before we begin.
We design our weed management for Minnesota lawns, focused on lasting results rather than a one-time spray.
For lawns with scattered weeds, we spot-treat problem areas with chelated iron, clearing weeds precisely without blanketing the whole yard.
For lawns under heavier weed pressure, we treat across the affected turf and build a schedule that accounts for our climate and the specific weeds you’re dealing with.
Weed control works best inside a bigger picture. We combine it with overseeding, aeration, and soil care so a thicker, healthier lawn does much of the weed-fighting for you.
Our process is straightforward, organized, and built for long-term results.
We start on-site, evaluating your turf, identifying the weeds present, and looking at the soil and growing conditions behind the problem. This assessment marks the start of your customized recommendations.
You receive a treatment strategy matched to your lawn, your weed pressure, and your goals, not a one-size-fits-all package.
We apply chelated iron at the right rate and timing, targeting broadleaf weeds while protecting your grass.
Established and perennial weeds often require more than one pass, so we schedule follow-ups to maintain control throughout the season.
We help you build the thicker, healthier turf that keeps weeds from returning through ongoing organic lawn care.
Not all lawn treatments deliver lasting results. As a Minnesota landscaping company rooted in the Twin Cities, we use natural weed control that addresses the root cause, drawing on local expertise and sustainable practices to build turf that crowds weeds out on its own.
Organic weed control does more than tidy your lawn; it lets you manage weeds while protecting the soil, pollinators, and family who depend on your yard. If you’re ready to move away from conventional weed spraying, our Minneapolis–St. Paul organic lawn care team is here to guide you from the first assessment to a lawn that holds its own.
For the common broadleaf weeds in Twin Cities lawns, chelated iron is very effective, especially in cool spring and fall. Deep-rooted perennials may need multiple applications, so we build follow-ups into the plan rather than relying on a single spray.
No. It's selective: broadleaf weeds absorb a toxic dose while turf grasses take up the same iron as a nutrient. You may see brief darkening across the lawn, but the grass recovers and often greens up.
It depends on your lawn's size, weed pressure, and how many applications you need. Some lawns can be cleared in one or two passes, while perennials like creeping charlie need more. We assess the lawn first and give you a clear plan and price up front, before any work begins.
Spring and fall. Chelated iron performs best in cooler conditions, which line up with when broadleaf weeds are actively growing and most vulnerable.
As the education and advocacy branch, we work with community partners to create safe places for our pollinators, one garden, yard, business, school, church, conversation at a time. We know that together, we can build the buzz!
As the construction branch of Minnehaha Falls Landscaping, we build outdoor decks, steps, railings, pergolas, fences, and planters. When it gets colder, we step inside to remodel living spaces with creativity and craftsmanship, including cabinetry.
As the gardening branch, we work within your landscape to grow plants, flowers, shrubs and woodland gardens that are beautiful, restorative, and safe for birds, people, pets, and pollinators. We also install bee-friendly lawns and do spring and fall clean-up.
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Call us at 612-724-5454 to see what is possible with landscape design and construction, organic gardening, and indoor remodeling.