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Straight answers · Getting rid of weeds

Weeds gone.
Roots and all.

You’ve been fighting your own driveway for years. This site tells you what actually kills weeds, what’s a waste of a weekend, and what it should cost, from one bloke who’s qualified to spray the professional stuff.

01Start here

Pick the fight you’re in

34 in-depth guides, and counting

Start with this one

What actually kills weeds for good

What really kills driveway and patio weeds down to the root, why cheap sprays and home remedies fail, and when to get it sorted.

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How to stop weeds in block paving and gravel

Why block paving and gravel are such weed magnets, and how to clear them and keep them out: re-sanding, sealing and gravel membranes.

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How to get rid of horsetail and mare's tail

Why horsetail and mare's tail beat shop weedkiller and every home remedy, why they force up through paving, and what actually works.

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Best weed killer UK: which one to buy, job by job

There is no best weed killer, only six jobs. The chemistry that does each one, the catch that comes with it, and where each answer is worked through properly.

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Do weed membranes actually work?

Yes for a while, no forever: what a membrane genuinely stops, why it fails over time, and the research that says mulch alone can do the same job.

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How to identify Japanese knotweed (and what to do next)

Zigzag stems and bamboo-like canes: telling Japanese knotweed apart from its lookalikes, the UK legal position, and why not to tackle it yourself.

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How to Choose, Calibrate and Use a Knapsack Sprayer

Choosing the right tank size and type, calibrating it to the label rate rather than guesswork, the common faults and their real fixes, and the licence question answered straight.

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Glyphosate Concentrate Strengths and Mixing Rates

Real named products at their published concentration, from consumer concentrates to Rosate 360 TF and Gallup Hi-Aktiv 490, with the actual mixing-rate maths for a 5 or 15 litre tank.

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The Best Tool for Weeding Block Paving and Patios

Hand tools, long-handled weeders and named cordless electric brushes compared, plus the honest trade-off a powered brush makes with your jointing sand.

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How to get rid of ivy

Whether ivy actually damages a wall, fence or driveway, why weedkiller barely touches it, and the straight answer on the neighbour's-ivy and house-value questions.

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How to Get Rid of Bindweed

Why bindweed beats people for a different reason than horsetail, whether pulling it helps or backfires, and the straight answer on the legal and horse-safety questions.

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Do Organic and Homemade Weed Killers Actually Work?

The honest, sourced verdict on vinegar, the 3-ingredient recipe, bleach and shop-bought organic sprays, and the one genuine exception worth knowing about.

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How to identify giant hogweed (and why not to touch it)

Purple-blotched stems and huge jagged leaves: telling giant hogweed apart from common hogweed, why its sap burns skin, and why not to touch or strim it yourself.

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Weed Killer for Brambles

Which chemistry reaches a bramble root crown, why the Roundup you grabbed may contain no glyphosate at all, and the cut-stump rate worth twenty sprays.

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How to get rid of stinging nettles

Why cutting nettles back makes the patch worse, the shallow yellow rhizome mat underneath, and the one date in late June the whole job hangs on.

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UK weed identification, and when not to trust an app

Written keys for thirteen weeds people cannot name, where the photo apps stop working, and the two UK plants where a wrong answer is a burn or a house sale.

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How to get rid of ground elder

Why almost the whole plant is underground, why a fork makes the patch bigger, how many glyphosate passes to plan for, and how to tell it from the umbellifers you shouldn't touch.

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Pet safe weed killer: what the phrase is worth, and which one to buy

There is no pet safe category in UK pesticide approval, and the keep-off sentence turns out to be word for word identical across glyphosate, vinegar and the natural acids.

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Weed killer for driveways and patios: which one to buy

What the residual half of a path and drive weedkiller actually does in a paving joint, how long it really lasts, what it costs per square metre, and the surface it is not approved for.

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Where to buy weed killer in the UK: what each shop actually sells

Screwfix, Toolstation, Wickes, B&Q, Tesco and Amazon decoded by active ingredient and grams per litre off the HSE register, then priced by the gram so two bottles can finally be compared.

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SBK Brushwood Killer: what triclopyr is, and when it beats glyphosate

What triclopyr actually does that glyphosate cannot, the two SBK bottles and the label rates behind them, and how to treat a cut tree stump properly.

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How to Get Rid of Dandelions

Why the taproot snaps at 5cm and hands you a cluster of new plants, how deep it really goes, the one month that more than triples your odds, and what to do about the one in a paving joint.

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Weed killer concentrate vs ready to use: the buying decision

What "makes up to 100 litres" is really counting, and why a concentrate is often weaker in the tank than the trigger bottle it replaces.

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Thistle identification: creeping, spear and Scotch thistle

Which thistle you have decides the job: a biennial you can finish with one cut before mid-July, or a creeping root system that regrows from a 3mm fragment.

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How to identify ragwort, and what the law actually says

Telling common ragwort from groundsel, tansy and the other yellow impostors, why the belief that you must remove it by law is wrong, and the honest way to get one out of the ground.

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Strongest weed killer UK: the legal ceiling on what you can buy

How strong UK weedkiller actually gets, why there is no such thing as an industrial weed killer, and who may legally spray the professional stuff.

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Roundup weed killer: one brand name, five different chemistries

Twenty-one authorisations, five different chemistries and one brand name: which Roundup contains glyphosate, which contains none, and which reaches a root.

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Resolva weed killer: which one have you actually bought?

One badge, four chemistries: three products called Path & Drive, two called 24h, and Xtra, Xtra Fast and Xtra Tough are entirely different chemicals.

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Weedol weed killer: what is left in the range, and what is leaving it

Both Weedol bottles that killed a root have gone, and the maker's own redirects point at contact sprays. Every product by approval number.

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Doff weed killer: what is in every bottle, and the number missing from all of them

Not one Doff concentrate publishes a millilitres-per-litre rate, so here is what their own coverage figures work out to, and where the real one lives.

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Rosate weed killer: the label dilution rate, and who is allowed to use it

Rosate 360 TF's own knapsack rates, 16 and 24 ml per litre, why every Rosate ever registered is professional-only, and the amateur 360 g/L equivalent.

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How to get rid of bamboo

Running or clumping decides whether this is an afternoon or a three-year campaign, why cutting it down multiplies it, and the sourced figures nobody else quotes.

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How to get rid of couch grass

Why couch grass beats a rotavator and every lawn weedkiller, how to tell it from the grass it is hiding in, and what actually reaches the rhizome.

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Gallup weed killer: which one is which, and what to mix

Five separate Gallup authorisations at 360 or 490 g/L glyphosate and only one you can legally use: which is which by MAPP number, the real rate per litre, and what a bottle actually covers.

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02Who's writing this

Not that kind of weed guy.

I’m one bloke who’s qualified to spray professional weedkiller, and this site is where I put the answers I’d give you over the fence. I use the strongest sh*t that’s legal to spray. The stuff from B&Q won’t touch what I put down.

No brand pays for the verdicts

No lawn-care firm owns this site and nothing here is a paid-for opinion. When a product is a waste of money, the page says so. If a recommendation ever earns me anything, it’ll be disclosed right there on the page, plainly.

Root first, always

Every answer starts with the same question: does it kill the root? If it doesn’t, you’re tidying up, not getting rid, and you’ll be back out there in a fortnight.

No waffle

Short answers first, the why underneath. You should leave every page knowing exactly what to do next, not with ten tabs open.

03Questions

The questions everyone asks

Because pulling, burning and jet-washing only deal with the green on top. The root stays down in the joint or the sub-base and pushes up fresh growth. Kill the root and they stop.

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A proper systemic spray isn’t instant. You’ll see weeds yellow and wilt within a week or two, and die back fully in about three to four weeks, because it’s working down into the root.

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They scorch the top and the weed looks dead for a fortnight, then it’s back. Salt and bleach can also wreck your paving and the ground around it. The root is the bit they never reach.

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Once a sprayed area has dried it is fine to walk on. Every UK label sets that as a condition rather than a number of hours, and the manufacturers will not name a drying time because the weather and the temperature decide it.

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No. Rain within a few hours washes the treatment off the leaf before it’s taken in, so you’ve wasted the spray and kept the weeds. Wait for a dry window.

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While the weeds are actively growing, roughly late spring to early autumn. Spray a dormant weed and there’s nothing moving inside the plant to carry the treatment to the root.

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Less than most people guess for a small area, and the size of the job drives the price more than anything else. The full answer covers what moves it up and down.

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See all questions, or got one that isn’t here? send it over and the useful ones get a proper page.