Where to buy weed killer in the UK: what each shop actually sells
No retailer prints the one number that decides whether a bottle works. So here is every product on the Screwfix, Toolstation, Wickes, B&Q and Tesco shelves, looked up on the HSE pesticides register and priced by the gram of active ingredient. Screwfix stocks no glyphosate at all, Toolstation's weed aisle is mostly landscape fabric, and the strongest weedkiller a homeowner can legally use is in none of them.
By The Weed GuyLast updated
The short version
Ignore the shop and ignore the brand. Compare grams of active ingredient per litre, then divide by the price. On 14 August 2026 five litres of Roundup Fast Action was £32 at Wickes, which is 36 grams of glyphosate, about 89p a gram. A litre of 360 g/L concentrate at £24.99 is 360 grams, about 7p a gram. Same chemical, close to thirteen times the price. And Screwfix, one of the two shops people search for weedkiller more than any other, sells no glyphosate whatsoever.
What is actually on each shelf
Read 14 August 2026, with every active ingredient and concentration taken off HSE's register rather than the retailer's own listing, because almost none of them tell you.
| Where | What is on the weedkiller shelf | Strongest glyphosate there | My verdict |
|---|---|---|---|
| Screwfix | Five products in the whole weed killer category, and two of those are moss killers. Both hard-surface bottles are ready-to-use Resolva. | None. There is no glyphosate product in the category at all. | One of the two shops people search for weedkiller most, and nothing on the shelf reaches a root. |
| Toolstation | Thirty-nine items under Weed & Ground Control, and most of it is landscape fabric, ground staples and spreaders. Two are actually herbicides. | 90 g/L, in Hygeia Weedfree concentrate at £16.49 a litre. | Barely a weedkiller shop, but the one concentrate it does carry beats every ready-to-use bottle on price. |
| Wickes | The biggest branded range of the sheds: Roundup, Weedol and Resolva, around twenty bottles. Almost every one is ready-to-use. | 7.2 g/L, in the Roundup Fast Action trigger bottles. | Easy to shop, and the most expensive way to buy glyphosate there is. |
| B&Q | The widest range by far, and the only DIY shed here with its own-brand weedkiller. Verve is a label, though: other people make it and B&Q puts its name on it. | 8.39 g/L in own-brand Verve Rootkilling; the branded concentrates reach 170 g/L in Roundup Optima+. | Read the back of the pack, not the Verve name on the front. |
| Tesco | Own-label only, and it splits two ways: glyphosate for the "path and patio" line, pelargonic acid for anything called "fast acting". | 90 g/L, in the own-brand concentrates. Every Tesco glyphosate spray is 7.2 g/L. | Fine value for a concentrate, but the fast-acting bottles contain no glyphosate whatsoever. |
| Amazon | The only mainstream shop where 360 g/L glyphosate concentrates are ordinary stock rather than a specialist order. | 360 g/L, which is the ceiling for any product on the amateur register. | Where the actual answer to "strongest weed killer" lives, at roughly a thirteenth of the shed price per gram. |
Prices in this resource are only quoted where I actually saw them on the day. B&Q and Tesco would not let me read their product grids from outside, so those two rows carry concentrations and no money.
Price it by the gram, because the bottle size tells you nothing
A £6 trigger bottle and a £25 concentrate are not comparable until you do one sum, and no shop does it for you. Every weedkiller has a concentration, given in grams of active ingredient per litre, and that figure is on the HSE register for every product legally sold in Britain. Multiply it by the pack size and you have the grams in the pack. Divide the price by that, and for the first time two bottles are on the same scale.
Roundup Fast Action is 7.2 grams of glyphosate a litre. Five litres of it was £32 at Wickes on 14 August 2026, so that pack contains 36 grams of glyphosate and you are paying roughly 89p a gram. Toolstation's Hygeia Weedfree is a 90 g/L concentrate at £16.49 for a litre, which is 90 grams for your money, about 18p a gram. A 360 g/L concentrate was £24.99 a litre on Amazon the last time I looked, in August 2026, and that litre gives you 360 grams, about 7p a gram.
The same arithmetic works the other way round if you prefer to think in tank fills. Diluted down to the 7.2 g/L the ready-to-use bottle already sits at, one litre of a 360 g/L concentrate makes fifty litres of spray. That is 50p a litre of made-up spray against £6.40 a litre at the shed. Identical chemistry, identical strength in the tank, thirteen times the cost.
One honest caution. That is arithmetic on the active ingredient, not a dilution instruction: mix to the rate printed on the bottle in your hand, which for ordinary weeds is usually weaker than 7.2 g/L, so a real bottle stretches further than fifty litres rather than less. The label rates scaled to a 5 or 15 litre tank are worked through separately, and getting that step wrong is the usual way people waste the saving they just made.
Screwfix: five products, and not one of them contains glyphosate
This is the finding that surprised me most. Screwfix is one of the two shops people search for weedkiller more than any other, and on 14 August 2026 its entire weed killer category held five products.
Two of the five are moss killers, which this site does not cover, and one is a lawn treatment. That leaves exactly two bottles for a drive, a path or a patio: Westland Resolva Xtra Fast, five litres covering 50 square metres at £31.99, and Resolva Path and Drive, five litres covering 50 square metres at £30.99. Both ready to use. No Roundup, no concentrate, and not one gram of glyphosate in the category.
Resolva Xtra Fast is badged glyphosate-free on the shelf, and the register says why: its active is pelargonic acid at 31.02 grams a litre. That is a fatty acid, a contact herbicide. It wrecks the leaf it lands on and goes nowhere near the root, which is why it looks so impressive by teatime and why the weed is back in a fortnight. Path and Drive is worse to shop for, because Westland has registered that name more than once: once as a 60 g/L acetic acid product and again as a 31.02 g/L pelargonic acid product. You cannot tell which one is in your trolley from the front of the pack.
One more thing about that £31.99 bottle. Its authorisation is held by Neudorff, and Neudorff also holds Tesco Advanced Path and Patio Weedkiller at the same 31.02 grams of pelargonic acid a litre. Same active, same strength, same authorisation holder, one of them badged as a trade-counter product and one of them supermarket own-label.
So the verdict on the shop people ask me about most is blunt. Screwfix is a superb place to buy a knapsack sprayer, gloves and a pair of knee pads. It is not a weedkiller shop, and £32 for a five litre bottle of leaf burn is the most expensive way I know of to not kill a weed.
Toolstation and Wickes: one has almost nothing, the other has almost nothing useful
Toolstation is the shorter story. Its Weed & Ground Control category ran to 39 products, and the overwhelming majority of it was landscape fabric, ground staples, spreaders, plant food and a mould cleaner. Two products in that category are actually herbicides.
The good one is Hygeia Weedfree at £16.49 a litre, which the register lists under MAPP 16038 as a 90 g/L glyphosate soluble concentrate. At about 18p a gram of glyphosate that quietly beats every ready-to-use bottle in every shed in the country. You would never know from the listing, mind: it names no active ingredient, no concentration and no MAPP number, and all it tells you is that 100ml covers 40 square metres, so a litre does 400.
The other bottle is Hytrol No Glyphosate RTU at £10.49 a litre. The name tells you the important half, which is that it belongs in the same contact-only category as the Screwfix bottles. I could not match it to a register entry with any confidence: the Hytrol range covers a 60 g/L acetic acid concentrate under MAPP 19621 plus two glyphosate products, and none of those is a glyphosate-free one litre ready-to-use. That is precisely the gap the MAPP number printed on the pack exists to close.
Wickes goes the other way. It carries a big branded range, around twenty weedkillers across Roundup, Weedol and Resolva, all of them clearly priced. The problem is the format: with the exception of one pack of Resolva liquid sachets, the entire shelf is ready to use. Roundup Fast Action was £6.50 for a litre and £32 for five, Roundup Tough £18 for three litres, Roundup Speed Ultra £6 a litre, Weedol Rapid Glypho Free £28 for five.
Two of those names deserve a warning, because they sit inches apart. Resolva 24h is 8.39 g/L glyphosate, a genuine systemic. Resolva Xpress 24h is 31.02 g/L pelargonic acid and contains no glyphosate. One word between them on the label, and the difference between killing the root and burning the top. Weedol Rapid Glypho Free at least tells you in the name.
Own-brand weedkiller: whose bottle is it really?
Neither Screwfix, Toolstation nor Wickes holds a single plant protection authorisation, so none of the three has an own-brand weedkiller at all. B&Q and Tesco do, and the register shows exactly who makes them.
| Own-brand product | MAPP | What is really in it | Authorisation held by |
|---|---|---|---|
| Verve Rootkilling Weedkiller (B&Q) | 17649 | 8.39 g/L glyphosate, ready to use | Syngenta UK Limited |
| Verve Rapid Action RTU Weedkiller (B&Q) | 18596 | No active substance shown on the register entry | Evergreen Garden Care UK Ltd |
| Tesco Extra Tough Weedkiller Concentrate | 18843 | 90 g/L glyphosate, soluble concentrate | Sinon EU GmbH |
| Tesco Total Concentrated Weedkiller | 18332 | 90 g/L glyphosate, soluble concentrate | Sinon EU GmbH |
| Tesco Advanced Path & Patio Weedkiller | 19296 | 31.02 g/L pelargonic acid, contact only | W. Neudorff GmbH KG |
| Tesco Fast Acting Weedkiller Concentrate | 20790 | 186.7 g/L pelargonic acid, contact only | W. Neudorff GmbH KG |
Own-brand is not a cheaper class of chemistry, it is the same handful of manufacturers with a supermarket's name printed on the front. B&Q's Verve Rootkilling is authorised to Syngenta. Verve Rapid Action is authorised to Evergreen Garden Care, the company that owns Roundup and Weedol. Tesco's glyphosate comes from Sinon and its fast-acting line from Neudorff, who make several of the branded natural weedkillers on the same aisle.
Which kills the usual snobbery about own-label stone dead, and replaces it with a better question. Every one of these products carries a MAPP number, because a plant protection product cannot legally be sold in Britain without one. That number is a legal requirement, not a compliment. What it is good for is the lookup it gives you.
Go one layer further and it gets stranger still. Barclay Chemicals holds the authorisation for Gallup Home & Garden and for the professional Gallup Hi-Aktiv, and also for Tesco Glyphosate Concentrated Weedkiller, for the Hygeia Weedfree that Toolstation sells, for the Wilko Rootkill line and for every Rootblast product on the register. One company sits behind bottles in four different shops under six different brand names.
B&Q is the shed to go to if you want a concentrate, and it is the one to price carefully. Roundup Optima+ concentrate, which the register puts at 170 g/L glyphosate under MAPP 18846, was £69.99 for a litre on 14 August 2026, and its own listing says that litre makes up to 50 litres of spray covering 1,500 square metres. Work it through and that is about £1.40 a litre of made-up spray against £6.40 for a ready-to-use bottle, so even a dear concentrate lands at roughly a quarter of the cost. Watch the shelf edge, though. The 280ml pack of the same product was £35.99 in the morning and £12 in the afternoon of the day I looked.
You do not need a trade counter to buy 360 g/L
The received wisdom is that shop weedkiller is watered down and the real stuff is behind a certificate. Half of that is true, and the half people act on is not.
Every amateur glyphosate authorisation on the register was pulled and read, all 208 of them. The concentrations run 3.6, 7.2, 8.39, 72, 90, 120, 125, 144, 151, 170 and 360 grams a litre, and there is nothing above 360. So 360 g/L is not a lucky find, it is the ceiling, and plenty of ordinary bottles sit on it: Gallup Home & Garden under MAPP 17672, Roundup Ultra under 18850, Rootblast Super Strength Total under 17836, Resolva Pro Weedkiller Super Concentrate under 18936, Doff Power Up under 19749. That is fifty times the concentration of a Roundup Fast Action trigger bottle, on the home garden list, with no certificate involved.
Above that you are into professional products, and the law there is stricter than people assume. Roundup ProActive is 360 g/L and professional. ProVantage is 480, Gallup Hi-Aktiv Amenity is 490, and the strongest thing on the register is 550. But the Plant Protection Products (Sustainable Use) Regulations 2012 restrict buying a professional product, not only spraying it: regulation 9(5) makes it an offence to buy one for use by anybody who neither holds a certificate of competence nor is going to be working under the supervision of someone who does. The old exemption for anyone born on or before 31 December 1964 ceased to have effect on 25 November 2015. For a drive, a path or a gravel border, all that route buys you is at most half as much concentration again and a legal problem you did not have.
Watch the brand trap while you are at it. Rootblast alone spans 7.2 g/L in its Tough ready-to-use spray, 72 g/L in Tough Woody, 90 g/L in Max Total and 360 g/L in Super Strength Total. One brand, a fiftyfold range, and the words on the front do not tell you which one you have got. Only the MAPP number does, and the same trap applies to which chemistry does which job.
The concentration ladder, straight off the register
Every row is a real authorisation with its MAPP number, queried 2026-08-14. Note where the amateur ceiling of 360 g/L sits: level with professional Roundup ProActive. The certificate does not buy you a stronger spray.
Every bar is a real authorisation. The dashed line is the 360 g/L amateur ceiling. Two of the certificate-only products sit on it rather than above it.
- Roundup Fast Action, ready to use7.2 g/L
- Resolva 24H, ready to use8.39 g/L
- Doff Advanced Concentrated90 g/L
- Doff Advanced Maxi Strength360 g/L
- Roundup ProActive360 g/L
- Rosate 360 TF360 g/L
- Roundup ProVantage480 g/L
- Barclay Gallup Hi-Aktiv490 g/L
- Amega Duo540 g/L
- Pitch550 g/L
On open saleCertificate required
| Product | MAPP | Glyphosate | Tier |
|---|---|---|---|
| Roundup Fast Action, ready to use | 18679 | 7.2 g/L | Amateur |
| Resolva 24H, ready to use | 18921 | 8.39 g/L | Amateur |
| Doff Advanced Concentrated | 18107 | 90 g/L | Amateur |
| Doff Advanced Maxi Strength | 18103 | 360 g/L | Amateur |
| Roundup ProActive | 17380 | 360 g/L | Professional |
| Rosate 360 TF | 17682 | 360 g/L | Professional |
| Roundup ProVantage | 15534 | 480 g/L | Professional |
| Barclay Gallup Hi-Aktiv | 17646 | 490 g/L | Professional |
| Amega Duo | 13358 | 540 g/L | Professional |
| Pitch | 15485 | 550 g/L | Professional |
How many glyphosate products are approved for amateur use
There are two answers and they are both right, which is why you will not find one number anywhere. They come out of two different HSE databases counting two different things. Quote either one with its scope attached or it is wrong.
| Count | Register | What it counts |
|---|---|---|
| 133 | HSE GB garden register | Glyphosate products within the herbicide field of use, from the 331 unique GB-valid herbicide MAPP numbers |
| 208 | HSE GB professional register | Authorisations flagged Amateur. This register publishes concentration and an explicit Amateur/Professional field, which is how the 360 g/L amateur ceiling was proved rather than sampled |
Both queried 2026-08-14. A register changes continuously, so the date is part of the fact.
How to check any bottle yourself in about thirty seconds
HSE keeps a free public register of every pesticide authorised for home garden use in Britain, and it prints the number the retailer will not. Go to the HSE pesticides databases and open the garden search, then put in the product name or the five-digit MAPP number off the pack.
- Active substance and concentration. The line that settles every argument. It reads like "360.000 g / l glyphosate" or "31.020 g / l fatty acids: pelargonic acid", so you learn both what the chemical is and how much of it you are buying.
- Formulation type. Soluble concentrate or ready to use solution. This is the cost line, because it tells you how much of what you are buying is water.
- Authorisation holder. Who actually makes it, which is how you find out an own-brand is a rebadge.
- Extent of authorisation and expiry date. Whether it is approved in Great Britain, Northern Ireland or both, and until when.
One quirk worth knowing before it confuses you. Plenty of entries show an expiry date of 09/09/2099, which is not a hundred-year approval. It is a placeholder HSE uses while a renewal decision is pending, so the authorisation will end whenever that decision lands rather than at the end of the century.
Two more things worth knowing before you shop. Labelling rules retained in UK law, Regulation 547/2011, require the pack itself to carry the authorisation number and the concentration of every active substance in it. But nothing requires a retailer to repeat either in an online listing, and almost none of them do. B&Q does print the MAPP number for its Verve range, and on its listing for Resolva Xtra Tough Concentrated at £40 a litre it prints the words "MAPP xxxxx" where the number should be, which is an unfilled template on a live retail page. Screwfix, Toolstation and Wickes print it for nothing at all.
So the number that decides whether a bottle works is legally guaranteed on the pack in your hand and effectively absent from the screen you are buying from. That is the whole reason this page exists.
One thing on these shelves is on its way out
If you are choosing between the acid-based bottles, factor this in. HSE amendment notice 20250596, dated 1 April 2025, ends the authorisation of around thirty amateur acetic acid weedkillers on 30 November 2027, with sale of existing stocks allowed until 31 May 2028 and use and disposal of what is left until 31 May 2029. The reason given is Commission Implementing Regulation 2023/1446.
Resolva Path & Drive and B&Q's own Verve Rapid Action RTU are both named in that notice. Pelargonic acid products are unaffected, and so is glyphosate, whose own British approval is a separate and still-live question. It does not make an acetic bottle dangerous to use today. It does mean the format is being phased out, so it is an odd thing to standardise on now, on top of the fact that it never touched a root in the first place.
What to put in the basket
The page above is about where to buy and what a shelf will and will not sell you. This is the thing worth buying once you are standing in front of it.
What I’d use
Glyphosate concentrate, 360 g/L
Gallup Home & Garden Glyphosate Weedkiller (1 litre)
The one Gallup a homeowner can legally buy and use: a 1 litre glyphosate concentrate at 360 g/L, approved for home and garden use under MAPP 17672.
It is the same active, the same 360 g/L loading and the same isopropylamine salt as the professional Gallup XL, and its single label rate of 24 ml per litre of water is exactly the rate the professional labels reserve for perennial broad-leaved weeds. The difference between the two bottles is the authorisation printed on them, not the chemistry inside, and this is the side of that line you are allowed to stand on.
- Active ingredient
- Glyphosate, 360 g/L, as the isopropylamine salt
- Formulation
- Soluble concentrate you dilute yourself
- Approval
- MAPP 17672, labelled for use only as a home and garden weedkiller
- Mixing rate
- 24 ml per 1 litre of water, per the label
- Coverage
- 40 sq m per litre of made-up spray, so roughly 1,667 sq m per bottle
- Rainfast
- Rain within 6 hours may reduce effectiveness, per the label
- Size
- 1 litre of concentrate
Watch out for
- No measuring cap in the bottle. Check a cup arrives, or the dose is guesswork.
- One re-treatment a season, and it takes four weeks. Do not go again early.
- Not for lawns. It is non-selective and takes the grass too.
- Resellers dominate the listing, so check the label that arrives is Barclay.
- "Super strength" is keyword stacking. It is 360 g/L, same as professional Gallup XL.
That’s an affiliate link: buy through it and I earn a small commission at no extra cost to you. It doesn’t change what I recommend or what I say is wrong with it. More on how that works in the affiliate disclosure.
No brand pays for a mention here, and nothing on this page is a paid-for opinion. The card above is an affiliate link, so I earn a commission if you buy through it, at no extra cost to you. It buys no product a kinder write-up, which is why the watch-outs sit on the same card as the reasons to buy.
About this resource
I'm The Weed Guy, one bloke who is qualified to use professional weedkiller. Every concentration, MAPP number, formulation type and authorisation holder on this page came off HSE's own pesticides registers on 14 August 2026, product by product, and anyone can repeat the lookup with the instructions above. The shelf contents and prices for Screwfix, Toolstation and Wickes were read from their own listings on the same day.
Where I could not verify something, it is not here. Tesco would not show me a price at all, so its row carries concentrations and no money, and B&Q's category grid would not load either, so the B&Q prices here are individual product pages read on the day rather than a survey of the shelf. I could not establish which registered formulation is in the Resolva Path and Drive pack Screwfix sells, or match Toolstation's Hytrol bottle to a register entry at all, so the page says so instead of guessing. Prices move, and every one here is a snapshot with the date attached rather than a current price. I have not tested these products against each other and I am not going to pretend otherwise.
Straight disclosure: nothing here is a paid-for opinion, and no brand, manufacturer or retailer sponsors this site or pays for a mention on it. Which is exactly why the shops that sell me nothing get named for precisely what they stock, and why the register figures go in whether they flatter a product or embarrass it. How the site makes its money is set out in full on the affiliate disclosure page.
Common questions
Does Screwfix sell Roundup?
No. On 14 August 2026 the Screwfix weed killer category held five products and none of them was a Roundup, a glyphosate product or a concentrate. Two were moss killers and one was a lawn treatment, which leaves two bottles for a path or a drive, both ready-to-use Resolva. If you have searched "roundup weed killer screwfix" and come away confused, that is why: the product you were looking for is not stocked, and nothing on the category page tells you so.
Why is the weed killer in Screwfix glyphosate free?
Because the two hard-surface bottles it stocks are acid-based rather than glyphosate-based. The headline product, Westland Resolva Xtra Fast at £31.99 for 5 litres, is badged glyphosate-free and its active is pelargonic acid, a fatty acid registered at 31.02 g/L. That is a contact herbicide. It destroys the leaf tissue it lands on and is never carried down to the root, so the weed browns off within a day and regrows from an untouched root system. The bottle is not defective, it is just doing a different job to the one most people buying it think they are paying for.
Does Toolstation sell weed killer?
Barely. Its Weed & Ground Control category ran to 39 products on 14 August 2026 and almost all of it was landscape fabric, ground staples, spreaders and plant food. Two products were herbicides: Hygeia Weedfree at £16.49 for a litre, which the register lists as a 90 g/L glyphosate concentrate under MAPP 16038, and Hytrol No Glyphosate RTU at £10.49 a litre, which is 60 g/L acetic acid under MAPP 19621. The Weedfree is genuinely decent value for a concentrate. Everything else in that aisle is not weedkiller.
What is the strongest weed killer you can buy at B&Q?
Stronger than the own-brand, and that is the thing worth knowing. Verve is B&Q's label rather than a manufacturer, and Verve Rootkilling Weedkiller is a ready-to-use spray at 8.39 g/L glyphosate under MAPP 17649, authorised to Syngenta. Ready-to-use is the weakest format there is, whoever makes it. The branded concentrates on the same shelves are far stronger per pound spent, so ignore the words on the front of the Verve pack and compare grams of active ingredient per litre instead.
Where can I buy glyphosate weed killer in the UK?
Everywhere except the two trade counters people search hardest for. Screwfix stocks no glyphosate at all and Toolstation stocks one product. Wickes, B&Q and Tesco all sell it, but at consumer strength: 7.2 to 8.39 g/L in a ready-to-use trigger bottle and 90 g/L in a supermarket concentrate. For the strong stuff, the amateur register carries several 360 g/L glyphosate concentrates, and Amazon is where they are routinely in stock rather than a specialist order.
Is Tesco weedkiller any good?
It depends entirely which one you pick up, and the names are no help. Every Tesco own-label glyphosate concentrate on the register is 90 g/L, which is a perfectly respectable systemic product for a drive. Every Tesco glyphosate spray is 7.2 g/L, which is a lot of water to carry home. But the "fast acting" line contains no glyphosate at all: Tesco Fast Acting Weedkiller Concentrate is 186.7 g/L pelargonic acid under MAPP 20790, held by Neudorff, and pelargonic acid is a contact herbicide that never reaches a root. Read the MAPP number, not the shelf edge.
What is a MAPP number on a weed killer bottle?
It is the registration number HSE gives one specific authorised formulation, and it must be printed on the pack of any plant protection product sold legally in Britain. Every own-brand weedkiller carries one, which is a legal requirement and not a mark of quality. What it does buy you is a lookup: put that number into the HSE register and you get the true active substance, the exact grams per litre, who holds the authorisation and when the approval expires. What it is not is a strength rating, a safety score or a comparison between products.
How do I find out what is actually in a weed killer before I buy it?
Look the product up on HSE's garden pesticides register, which is free and public. Search by product name or MAPP number and the entry gives you the active substance and its concentration in grams per litre, the formulation type, the authorisation holder and the expiry date. It takes about thirty seconds and it is the only way to compare two bottles honestly, because retailers state the active ingredient on almost none of their listings and words like "extra tough" and "super strength" are marketing rather than measurements.
Is it cheaper to buy weed killer on Amazon than in the shops?
On glyphosate, dramatically, and it is not close. Price it by the gram of active ingredient rather than by the bottle. Five litres of Roundup Fast Action was £32 at Wickes on 14 August 2026 and it is 7.2 g/L, so that pack holds 36 grams of glyphosate, about 89p a gram. A one litre 360 g/L concentrate at £24.99 holds 360 grams, about 7p a gram. That is close to thirteen times the price for the same chemical, and the gap exists because a ready-to-use bottle is mostly water you have paid to have shipped to you.
Can a homeowner legally buy professional weed killer?
Not freely, and the restriction bites at the till as well as at the sprayer, which is the part most people get wrong. The Plant Protection Products (Sustainable Use) Regulations 2012 make it an offence under regulation 9(5) to buy a professional product for use by anyone who does not hold a specified certificate of competence, unless that person will be working under the supervision of someone who does; regulation 8 restricts the use in the same terms. The old exemption for anyone born on or before 31 December 1964 ceased to have effect on 25 November 2015. The good news is that you rarely need to go there. The amateur register tops out at 360 g/L glyphosate, the same concentration as professional Roundup ProActive, in ordinary products like Gallup Home & Garden under MAPP 17672.
What weed killer does Wickes sell?
Roundup, Weedol and Resolva, roughly twenty bottles of it, and almost every one is ready to use. The only concentrate I could find in the listing was a pack of Resolva liquid sachets. That matters more than the brand names: ready-to-use is the format that costs the most per gram of active ingredient, so a shop with a large ready-to-use range and no concentrate range is an expensive place to buy weedkiller however good the brands look.