Homeowners: Remove an Old Lawn in 2–3 Weeks With Sod Cutter + Herbicide

For small areas, hand digging with a spade or mattock gives you the most control and works well in a weekend. For medium to large lawns, hiring a sod cutter saves hours of labor. For couch, bermuda or other creeping perennial grasses, mechanical removal alone rarely finishes the job. You will usually need a follow-up herbicide treatment to stop the rhizomes coming back, and grasses with deep root systems may need a second pass before you sow seed or lay new turf.


TL;DR:

  • Mechanical removal with a sod cutter or hand digging works best for medium to large areas, but often requires follow-up herbicide treatment to prevent regrowth of creeping grasses.
  • Timing herbicide application during active growth in warmer months enhances effectiveness, with a waiting period of 7 to 14 days before planting or sowing.
  • Solarisation and sheet mulching are gentle options that take 4 to 8 weeks and several months respectively, making them suitable for non-urgent projects or small areas.
  • Combining methods, such as sod cutter followed by herbicide, improves removal success for stubborn species like couch and bermuda, reducing regrowth risk.
  • Proper site preparation, including soil correction and clearance of leftover roots, is crucial for successful lawn renovation, regardless of the removal method chosen.

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Table of Contents

Assess your lawn before you choose a removal method

Before picking up a shovel or calling a hire shop, walk the lawn and take stock of what you are actually dealing with. The right method depends on size, access and the grass itself, not just personal preference.

Start by measuring the area and checking whether machinery can reach it. A sod cutter needs a reasonably flat path in and out, so narrow side gates or steep slopes can rule out mechanical hire. Next, identify the grass type. Spreading grasses that grow through rhizomes and stolons, such as couch and bermuda, behave very differently from clumping types, and this single detail often decides whether you need a chemical follow-up at all.

Check thatch depth and soil compaction while you are out there. A thick thatch layer or a compacted surface changes how deep you need to cut and how much soil work follows. Look for visible weed growth too, since a heavy seedbank in the topsoil can undo a good removal job within weeks.

  • Measure the area and confirm machinery access if you plan to hire a sod cutter.
  • Identify whether the grass spreads by rhizomes or stolons, since this affects regrowth risk.
  • Check thatch thickness, soil compaction and any visible weeds.
  • Decide your end goal: instant turf, seed, or a garden bed, since this shapes your prep timeline.

Methods for removing old grass, step by step

Once you know your site, the method choice gets simpler. Here is how each of the five common approaches actually works.

  1. Manual digging. Best suited to small areas or tight corners a machine cannot reach. Use a sharp spade or turfing iron to slice the turf into manageable strips, undercut the roots at a shallow angle, and roll each strip up like carpet. This method gives you precise control near garden beds and edging, but it is slow and hard on your back over anything larger than a small courtyard.
  2. Sod cutter. For medium to large lawns, a hired sod cutter removes turf far faster than hand tools. Set the blade depth to around 1 to 2 inches so you lift the root zone without wasting good topsoil, then run it in straight passes. The machine leaves neat rolled strips that are easy to stack for disposal, though you will still need help lifting and moving them.
  3. Herbicide (glyphosate). A non-selective herbicide kills the whole plant, roots included, which matters for creeping grasses that regrow from fragments left behind by digging. Apply to actively growing, unstressed grass for the best result, since glyphosate label guidance notes it works through the leaf and needs healthy growth to translocate into the roots. Visible dieback can take several days to weeks, and most labels call for a wait of 7 to 14 days, or the specific plant-back period on the label, before you disturb the soil or sow.
  4. Solarisation. This organic method uses clear plastic sheeting stretched tightly over mown, moist grass and sealed at the edges to trap heat. According to NSW DPI guidance on soil solarisation, the process typically needs 4 to 8 weeks of full sun, and persistent warm-season grasses may need at least 6 weeks to fully cook the root zone. It works well on small to medium areas but is impractical for a large block, since sourcing and weighing down enough plastic gets unwieldy fast.
  5. Sheet mulching (cardboard method). Lay overlapping cardboard directly over mown grass, wet it thoroughly, then cover with mulch or compost. The grass beneath breaks down over several months as light is cut off and the cardboard decomposes. It is gentler on soil biology than chemical or mechanical methods but too slow if you want new turf down this season.

Pro Tip: Mow the lawn as short as possible before solarising or sheet mulching. Less leaf material means less shade under the plastic or cardboard, so the heat or smothering effect works faster.

Weighing the trade-offs and combining methods for tough grasses

No single method wins on every count. Manual digging is precise but slow and physically demanding. A sod cutter is fast but leaves you with heavy rolls to dispose of and some root fragments in the soil. Herbicide kills roots effectively but requires a waiting period and careful handling. Solarisation and sheet mulching are gentle on soil life but take weeks to months.

  • Speed: sod cutter and herbicide work fastest; solarisation and sheet mulching take the longest.
  • Soil disturbance: manual digging and sod cutting disturb the topsoil; herbicide and solarisation leave soil structure mostly intact.
  • Regrowth risk: mechanical methods alone carry the highest regrowth risk for creeping grasses, since a single missed rhizome can resprout.
  • Cost and labor: manual digging costs little but demands the most physical effort; sod cutter hire and herbicide cost more but save time.

For stubborn, creeping species like couch or bermuda, NSW DPI notes that mechanical removal alone often leaves enough rhizome behind to regrow, so pairing methods gives a more reliable result. A practical combination is running the sod cutter to clear the bulk of the lawn, then spot-spraying any regrowth with herbicide two to three weeks later before it re-establishes. For a small backyard with a clumping grass type, hand digging alone is often enough. For a large lawn on a tight deadline, sod cutter plus herbicide follow-up beats waiting out a full solarisation cycle. For a lawn riddled with couch, budget for a second herbicide application once the first regrowth appears, since one pass rarely finishes it.

What to do with the old turf and how to prep the seedbed

Once the grass is out, you need somewhere for it to go and a plan to get the soil ready. Most councils offer green-waste collection or transfer stations that accept turf, and some allow it in kerbside green bins if cut into manageable pieces. Large volumes of rolled sod are heavy, so check weight limits before loading a trailer. Composting is an option for smaller quantities if your council allows it and the turf has not been treated with a persistent herbicide.

With the old turf gone, site preparation determines how well new turf or seed takes hold.

  • Remove any remaining large roots or rhizomes by hand, since leftover fragments can resprout under new turf.
  • Grade and level the bed so water does not pool, then test soil pH and fertility to see what amendments you need.
  • Follow the herbicide label’s plant-back period before sowing seed or laying turf, typically 7 to 14 days for many products according to the glyphosate label.
  • Correct sandy or heavy clay soils with a turf underlay layer to give new turf an even, well-draining base to root into.

A bulk bag of turf underlay is a practical way to top up or correct soil texture across a mid-size lawn without multiple small bag runs.

Timing your lawn removal for the season

Timing changes which method makes sense. Solarisation needs peak summer heat, and NSW DPI recommends 4 to 8 weeks of full sun, with persistent warm-season grasses needing at least 6 weeks to fully break down. Herbicide works best when grass is actively growing, generally in the warmer months when leaves are drawing nutrients down to the roots. Spraying dormant or drought-stressed grass gives a weaker result, since the plant is not actively translocating the chemical.

Avoid heavy removal work in waterlogged, frozen or drought-stressed conditions. Wet soil compacts easily under machinery and foot traffic, while dry, stressed grass will not respond well to herbicide or dig out cleanly. Aim for a mild, dry stretch of weather whichever method you choose.

When it makes sense to hire a turf professional

Some jobs are worth handing over. Large areas, poor machinery access, entrenched perennial weeds or a tight deadline are all good reasons to call in a professional rather than spend several weekends on it yourself.

When you get quotes, ask specific questions so you can compare them properly.

  • Ask what soil preparation is included, not just the removal itself.
  • Confirm how green waste will be disposed of and whether that cost is in the quote.
  • Ask about warranty terms, the turf variety recommended for your site, and delivery logistics.
  • Confirm the contractor carries insurance for the work.

Watch for red flags: a quote with no mention of soil testing or preparation, an unrealistic same-day turnaround for a large area, or a price that seems too good once you factor in disposal and prep work.

Field notes from turf growers on what actually works

Homeowners often underestimate how much regrowth comes from a handful of missed rhizomes, especially with couch and bermuda. The most common mistake is stopping after the first herbicide pass instead of checking back in two to three weeks for stragglers.

Most lawn renovation problems trace back to skipped soil prep, not the removal method itself. Get the soil right and almost any turf variety will establish well.

Some turf growers have grown and supplied instant turf since 1990, and staging a renovation typically starts with a site check, soil correction and a turf variety recommendation suited to sun exposure and soil type, including popular varieties like Sir Walter DNA Certified Buffalo and TifTuf Bermuda.

Why the removal method matters less than the follow-through

Why the removal method matters less than the follow-through — overview diagram

The method you choose for removing an old lawn gets more attention than it deserves. Manual digging, a sod cutter and herbicide all work when applied correctly, and the differences between them matter less than what happens in the two to three weeks after removal. Most regrowth problems trace back to skipped follow-up, not a wrong choice between digging and spraying.

The conventional advice tends to treat lawn removal as a single event: dig it out, done. In practice, creeping grasses need a second look before you commit to new turf or seed, and skipping that check is the single biggest reason renovations fail within the first season. If you take one thing from this, prioritize soil preparation and a follow-up inspection over debating which removal tool is fastest. A slower method done thoroughly beats a fast method done once.

— Clint

Products that make a lawn renovation easier

Once the old grass is out, a few products carry real weight in getting the new lawn established. Lawn Solutions Oxafert 3kg feeds new turf roots as they establish, Lawn Grub Guard protects young turf from grub damage while it is most vulnerable, and a Turf Underlay 1t Bulka Bag corrects soil texture before you lay new turf.

Lawn Solutions Oxafert 3kg

If digging and disposal is not how you want to spend your weekend, turf delivery and a turf laying service handle the reinstallation for you. Browse turf varieties and lawn care products to plan your next step.

Where to check timings and label instructions

Before you spray or solarize, confirm the details against primary sources. The NSW DPI solarisation guidance covers timing for warm-season grasses, and the glyphosate product label sets out application rates and plant-back periods. Always check your local council’s green-waste rules before disposing of large volumes of turf.

Sources

FAQ

What happens if you lay turf over existing grass?

New turf laid directly over an existing lawn will struggle to root properly, since the old grass and thatch block contact with the soil below. The old growth also competes with new turf for light and nutrients as it dies back unevenly, often leaving patchy establishment.

How do you completely remove a lawn?

Complete removal usually combines mechanical work, such as manual digging or a sod cutter, with a herbicide follow-up for any regrowth from roots or rhizomes left behind. For creeping grasses like couch or bermuda, check back two to three weeks after the first treatment and spot-treat any regrowth before sowing or laying new turf.

What is an easy way to remove a lawn?

For small areas, hand digging with a spade or turfing iron is the simplest method and needs no hired equipment. For anyone wanting an even lower-effort option, sheet mulching with wetted cardboard and mulch smothers the grass over several months without digging.

What is the best time of year to remove grass?

The best timing depends on the method: solarisation needs peak summer heat and 4 to 8 weeks of full sun exposure, while herbicide works best when grass is actively growing rather than dormant or drought-stressed. Avoid heavy digging or machinery work when the ground is waterlogged or frozen.

How long do you need to wait before planting after using herbicide?

Most glyphosate labels recommend waiting 7 to 14 days after application before disturbing the soil or sowing seed, though the exact plant-back period varies by product. Always check the specific label for your product before laying turf or sowing.