“Kill everything” herbicides are the ones specifically formulated for total vegetation control — areas where you genuinely never want anything growing again, like gravel driveways, under decks, along fence lines, or between pavers. These are different from a standard glyphosate weed killer, since many include a soil-residual second ingredient that prevents new growth for months or longer, not just a one-time kill of what’s currently there. Here’s what’s actually sold for this specific purpose.
One-time kill vs. extended soil-residual control
A standard glyphosate-only product kills existing growth but doesn’t stop new weeds from germinating later — it breaks down in the soil relatively quickly. Products formulated with a residual herbicide (imazapyr or similar) stay active in the soil for months, preventing new seeds from establishing, which is the real difference-maker for a true “nothing grows here again” result.
1. Spectracide Weed & Grass Killer Concentrate
A widely available, fast-acting total vegetation killer suitable for clearing driveways, walkways, and gravel areas. It’s positioned as a dependable, visible-results-within-days option for general total-kill situations without the extended months-long residual of specialty products.
Pros: fast visible results, widely available, good for one-time total clearing jobs.
Cons: doesn’t prevent new weed growth long-term the way residual products do.
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2. Ortho GroundClear Vegetation Killer
Combines glyphosate with imazapyr for soil-residual activity, meaning it keeps preventing new growth in the treated area for an extended period rather than just killing what’s currently there. This is the step up from a basic one-time killer when you genuinely want the area to stay bare.
Pros: extended residual control, prevents regrowth for months, strong for permanent no-grow areas.
Cons: soil residual means nothing can be planted there for a long time afterward.
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3. RM43 Total Vegetation Control
Marketed for up to a year of vegetation control, RM43 is one of the strongest residual options commonly available, aimed specifically at gravel lots, fence lines, and other areas where long-term bare ground is the entire goal.
Pros: longest marketed residual control window among these options, strong for large no-grow areas.
Cons: most aggressive soil-residual effect — keep well away from any area you might want to use for planting later.
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4. Green Gobbler Vinegar Weed & Grass Killer
A non-selective but non-residual alternative worth considering if “kill everything” means the existing growth, not a permanent chemical barrier. Green Gobbler’s 20% acetic acid formula desiccates plant tissue on contact without leaving behind a soil-residual chemical, which matters if the area borders a vegetable garden, pet-accessible yard, or anywhere you might eventually want to grow something again despite today’s “kill it all” goal.
Pros: no soil-residual carryover, safer choice near edible plants or pet areas, fast visible burn-down.
Cons: weaker than glyphosate-imazapyr blends on established perennial weeds; needs repeat applications to stay ahead of regrowth since nothing prevents new seeds from germinating.
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What to check before you buy
The single most important decision is whether you want this spot to stay bare permanently or you’re just doing a thorough one-time clearing. If it’s genuinely permanent — a gravel parking pad, under a shed, a path you’ll never convert back to planting — a residual product like RM43 or GroundClear is worth the restriction it places on future use. If there’s any chance you’ll want to plant there again within a year or two, stick with a non-residual option like Spectracide or, if you want to avoid glyphosate entirely, Green Gobbler’s vinegar-based formula. Also check the proximity to tree roots, since tree roots can extend well past the visible canopy and absorb residual herbicides from supposedly unrelated “dead zones,” which has killed or damaged trees that looked unrelated to the treated area.
Frequently asked questions
Can residual herbicides like RM43 leach into a neighboring lawn or garden bed?
Yes, especially on sloped ground or sandy soil where water runoff or percolation can carry residual herbicide sideways or downhill into adjacent soil. Keep a buffer zone and avoid applying right before heavy rain is forecast.
How long before I can safely remove dead vegetation after spraying?
Most labels recommend waiting until the plant is visibly dead and brittle (often 1-2 weeks) before pulling or mowing it, since actively dying tissue is still translocating the herbicide down to the root system — removing it too early can leave the root alive and able to regrow.
Is there a truly organic option that works as well as glyphosate for total vegetation control?
Not quite at the same level of effectiveness on tough, established perennial weeds. Vinegar-based (acetic acid) products like Green Gobbler are a genuine organic alternative for annual weeds and general burn-down, but most organic options require more frequent reapplication than glyphosate-based products to achieve comparable long-term control.
Final thoughts
If you just need a one-time total kill of what’s currently growing and don’t care about long-term prevention, Spectracide gets the job done quickly, and Green Gobbler is the non-glyphosate version of that same one-time approach. If you want the area to genuinely stay bare for months, Ortho GroundClear or RM43 (for the longest-lasting option) are the real “nothing grows here” products. Whichever you choose, treat it as a one-way decision for that spot of ground — these residual herbicides can leach into adjacent soil, so keep a buffer zone away from any lawn, garden bed, or tree roots you want to keep healthy.
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