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Native Landscaping: Fall Site Prep

Wednesday, September 2, 2026

Hannah Godfrey Posted by: Hannah Godfrey

Every year, as a long Indiana winter drags on, you start craving green. You miss the color that unfolds all summer, the hum of insects, the sight of dew catching the morning light across your yard. You want that feeling back.

Here’s the thing: that spring landscape doesn’t start in spring. If you want a native garden humming with life next year, the groundwork gets laid now— months before the last frost.

Why Bother with Prep?

Native plants, especially perennials, tend to be slow starters. In the first few years after planting, they spend most of their energy building hardy root systems. That means invasive species, grasses, and weeds will win every time— unless you clear the way first.

Terminating existing vegetation is essential for success. Fall is the perfect time to do it: winter cold will do most of the grunt work for you. Plus, many native seeds germinate better after spending a cold winter in the ground.

Depending on the state of your site, prep could take anywhere from a full season to one afternoon.

If you’re thinking about planting natives on your property, fall is the time to get started.


Pick Your Method

Depending on the state of your site, prep could take anywhere from a full season to one afternoon — and the method you choose depends on your goals.

Maybe you’re after a full-on prairie conversion.
Or maybe something with a more manicured appeal.

Pick the method that fits your site and your vision!

Sheet Mulch It

Best for small garden beds, or if you’re planning to use plugs.

This beginner-friendly method uses materials you probably already have.

  1. Mow the area as short as possible.
  2. Lay cardboard or several overlapping layers of newspaper over the grass.
  3. Cover with a few inches of mulch.
  4. Walk away.

The cardboard and newspaper suffocate the grass and block sunlight. When it’s time to plant, just cut a hole through it and drop in your plugs.

Start this method in late summer or early fall — and note: it’s for plugs only, not seed.

Tarp It

No digging, no chemicals — just patience. Ideal for a large area, partial sun, or if you just don’t feel like digging.

Cover the area with a tarp (a silage tarp is the professional choice, but a painter’s tarp works fine too). Weight down or bury the edges so no light gets in. Without sunlight, the grass dies on its own.

Leave the tarp down for at least 4–6 weeks — longer is better, and you can leave it on straight through winter.

Cut the Sod

Not practical for a large area, but the results are immediate.

This method can be done any time of year, not just fall. You’ll need a sod cutter, which you can typically rent from a local hardware store.

Fair warning: it’s a workout, and deep-rooted vegetation like dandelions will resprout. Make sure you pull those roots by hand.

Spray Herbicide

Great for aggressive weeds and very large planting areas.

Fall is the most effective time to apply it: as temperatures drop, plants pull nutrients down into their roots for storage — and with the right timing, they’ll pull the herbicide down with them, killing the roots thoroughly.

Spray while it’s still warm enough for plants to be actively growing — think 50°F during the day, staying around 40°F at night. Avoid spraying right before or after a hard freeze. This method won’t work if the plant is dormant.

Skip the Tilling

It’s tempting to turn the dirt over, but this is actually counterproductive.

Tilling rouses dormant seeds in the soil, and grasses will keep spreading and regrowing from the pieces left behind.

If tilling feels necessary, save it for smoothing the soil surface right before seeding or planting plugs — it’s not a termination method.


Do the work this fall, and come springtime, you’ll be ready to spend your season planting and watching your natives grow — not fighting weeds.