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Feeds, moss killers and kelp extracts broken down into agricultural-grade salts and powders.
Teardowns
38
Typical saving
67%
Steepest gap
Evergreen Complete 4-in-1 Lawn Feed & Moss Killer
Lawn feeds, moss killers and houseplant drops are agricultural salts and kelp, portioned into small boxes. The analysis on the pack (NPK, iron, potash) is the only number that matters — several soluble feeds share blend CAS 66455-26-3 but are not interchangeable.
Path weeds, lawn daisies and brambles are different herbicides (glyphosate, mecoprop-P/dicamba, MCPA/fluroxypyr/clopyralid, triclopyr). Weigh granules per square metre for feeds. Do not pile fertiliser against stems, and keep soluble iron off pale stone if you want to avoid rust stains.
Organic-looking branding does not change the salt. Sulphate of potash and ferrous sulphate still need gloves and a dry store. Garden lime (calcium carbonate) raises pH — it is not a feed and not iron. Fungicides and insecticides (triazoles, pyrethroids, spinosad) are not weedkillers.
This hub currently covers 38 lawn & garden teardowns. Typical saving versus a branded pack is about 67% per working litre. The steepest gap today is Evergreen Complete 4-in-1 Lawn Feed & Moss Killer at 91%. Snapshot retail prices start around £2.75 — live shop listings move.
Area estimator — measure the surface, pick a teardown, see concentrate and water for that job.
Lawn guide
Lawn and plant food labels decoded: NPK without the brand box
What 7-7-7, 5.3-7.5-10 and 12.5-25-25 actually mean, and which DupeStack teardowns match Growmore, Q4, Chempak and tomato feeds.
Lawn guide
Weedkillers decoded: glyphosate vs triclopyr — paths, brambles and lawn
Pathclear RTU, Resolva Xpress pelargonic, Doff mecoprop-P, Weedol Lawn MCPA three-way, SBK brushwood killer and ferric slug bait use different actives. Match the molecule to the weed — and never swap without reading the label.
Lawn guide
Garden tonics decoded: seaweed, chelated iron, Epsom and rooting powder
Kelp extract, Fe-EDDHA, Epsom salts, IBA rooting powder and foliar soap are not NPK bags. Match the deficiency or the cutting — then buy the bulk salt, not the sachet.
Lawn guide
Lawn moss vs a nitrogen green-up — ferrous sulphate is not sulphate of ammonia
Evergreen 4-in-1 and lawn sands use iron to blacken moss. Sulphate of ammonia is 21% N for colour. Do not treat a feed box as a moss killer — or a moss killer as Growmore.
Lawn guide
Garden pests and disease: fungicides vs insecticides — not weedkillers
Blackspot, mildew, greenfly and ant runs use different molecules. Match copper, sulphur, triazoles, pyrethroids, acetamiprid and oil sprays to the job — then buy the bulk active, not another rose bottle.
Lawn & garden
Miracle-Gro
A watered-down cold-pressed kelp extract. Soluble Ascophyllum nodosum powder is the same crop, sold by the kilogram to hydroponic growers, at a fraction of the bottled price.
Lawn & garden
Evergreen
The moss-blackening punch is ferrous sulphate — the same agricultural iron used on bowling greens. The 4-in-1 box is mostly filler, NPK dust and a brand. Buy the salt.
Lawn & garden
Growmore
7-7-7 is a commodity NPK blend. The cardboard box is a portioned sack of agricultural compound fertiliser. Buy it by the 25 kg bag from a merchant, not 4 kg at a time from a garden centre.
Lawn & garden
Miracle-Gro
A dilute bottle of soluble NPK. Hydroponic 20-20-20 (or similar) powder is the same three numbers, un-dyed and un-marketed, at a gram per litre instead of a capful of coloured water.
Lawn & garden
Mo Bacter
The moss dies because of high potash, not a magic organic patent. Sulphate of potash (0-0-50) supplies the same K2O without iron staining; a cheap Bacillus or compost-tea inoculant does the digestion step. A 20 kg 5-5-20 bag is mostly filler next to 10 kg of 50% K2O.
Lawn & garden
Doff
A 75 g tub is 74.9 g of talc carrying 75 mg of IBA. That is about £67/kg for cosmetic powder. 0.5 g of pure IBA in 500 g of unscented talc is the same 0.1% dip.
Lawn & garden
SB
Dilute foliar urea plus a potassium fatty-acid soap that smothers soft-bodied insects. A 500 ml bottle at 10 ml/L makes about 50 litres; the same working spray from bulk soap and urea is pence per litre.
Lawn & garden
Levington
A dilute high-potash bottle with a pinch of kelp. Soluble tomato feed around 4-4-8 (or 6-5-12) at 2 g/L is the same three numbers without the green dye. This is not Miracle-Gro 20-20-20 — tomatoes want potassium.
Lawn & garden
Westland
The garden-centre box is agricultural Epsom salts with a picture of a tomato. MgSO4·7H2O is a commodity desiccant and bath salt. Buy it by the 5 kg bag, not 1.5 kg at a time. This is not BetterYou magnesium oil (that is chloride).
Lawn & garden
Westland
21% nitrogen as ammonium sulphate. The cardboard box is a portioned sack of a fertiliser merchants sell in 25 kg lots. It greens grass. It also acidifies — do not pile it on chalk-hating stone paths.
Lawn & garden
Doff
Metaldehyde is gone. What remains is ~1% ferric phosphate in a cereal pellet. The 800 g tub is a small bag of the same bait sold in 2–5 kg buckets to allotmenteers. You are paying for the child-resistant lid.
Lawn & garden
Vitax
This is not ferrous sulphate (that is Evergreen moss killer) and it will not blacken a pale patio the same way. EDDHA/EDTA iron stays available on chalky soil. Four 20 g sachets are a tiny bag of the 6% chelate sold in 250 g tubs to nurseries.
Lawn & garden
Westland
This is not Tomorite (a dilute 4-3-8 bottle) and it is not 20-20-20. Potassium nitrate is 13-0-46: nitrogen plus potash in one salt. The garden-centre 1.5 kg box is agricultural KNO3 with a tomato on the front. Buy it in 5 kg.
Lawn & garden
Vitax
Q4 is a specific 5.3-7.5-10 organo-mineral with magnesium — not Growmore 7-7-7 and not Q4 HN (10.5-7.5-10.2). The garden box is a portioned sack. The same analysis is sold as a 20 kg professional bag.
Lawn & garden
Westland
This is not Growmore 7-7-7. It is an organic P-forward meal. Westland’s garden powder is 3-9-3 and, on the SDS, roughly half silica dust. A 25 kg sack of fish, blood and bone is the same job without the 1.5 kg box tax — check the analysis; trade bags are often 5-5-6.
Lawn & garden
Chempak
This is not Miracle-Gro 20-20-20 and it is not Tomorite 4-3-8. Formula 8 is a low-N, high-P/K soluble at 12.5-25-25 for ripening onions, leeks, heathers and conifers. The same analysis sells as hydroponic bloom / PK-heavy soluble powder by the kilogram — some shops now label the range Incredigrow.
Lawn & garden
Westland
A phosphorus-forward 0-17-0 — not Growmore 7-7-7, not fish blood and bone meal. Superphosphate is triple superphosphate granules sold in a small box. Merchants sell the same 17% P2O5 sack by the 25 kg for root establishment and autumn planting.
Lawn & garden
Weedol
Pathclear RTU is glyphosate at about 0.46 g/L in a trigger bottle. The same working strength comes from 13 ml of 360 g/L glyphosate concentrate per litre of water — pennies per litre versus £8.49 for the branded RTU.
Lawn & garden
Vitax
SBK is triclopyr at 48 g/L in a solvent base — the classic woody-weed killer. The same working band (about 0.96 g/L after dilution) comes from professional triclopyr concentrate without the garden-centre markup.
Lawn & garden
Vitax
Bordeaux mixture is copper sulphate reacted with lime — the same blue wash Victorian gardeners used. The sachet is a portioned blend; buying copper sulphate pentahydrate and hydrated lime separately fills many seasons of the same spray.
Lawn & garden
Rose Clear
Rose Clear Ultra is myclobutanil at about 0.875 g/L in the concentrate bottle — a triazole fungicide sold in a rose-shaped label. Technical myclobutanil powder dissolved to the same ppm is the same systemic without the garden-centre premium.
Lawn & garden
Baby Bio
Baby Bio is a capful of soluble 6-6-6 in coloured water. Hydroponic 20-20-20 powder at a lower gram-per-litre rate is the same three nutrients without the tiny bottle markup.
Lawn & garden
Vitax
Vitax Yellow Sulphur is 98% elemental sulphur (CAS 7704-34-9) in a 225 g puff pack. Flowers of sulphur from a 1 kg horticultural bag is the same dust — a contact fungicide and soil acidifier, not a systemic triazole and not Bordeaux copper.
Lawn & garden
Doff
Doff’s 200 ml lawn bottle is mecoprop-P at 37.5 g/L plus dicamba at 4.675 g/L — a selective auxin herbicide for turf, not glyphosate. Weedol LN Conc is the same pair. Current Weedol Lawn (MAPP 17599) is a different three-way — MCPA, fluroxypyr and clopyralid — see that teardown. A 1 L bottle of the mecoprop-P/dicamba formulation is the same working spray without the 200 ml garden-centre tax.
Lawn & garden
Provanto
Provanto Fungus Fighter is tebuconazole at 25 g/L in a 125 ml rose bottle. Four millilitres per litre lands at about 0.1 g/L — the same DMI triazole as a weighed pinch of 96% technical. It is not myclobutanil (Rose Clear), not sulphur, and not Bordeaux copper.
Lawn & garden
Nippon
Nippon powder is permethrin at 0.488% on talc — a pyrethroid crawling-insect dust in a 150 g shaker. A 1 kg bag of the same 0.5% permethrin powder is the same dust without the puffer-pack markup. It is not DEET, not glyphosate, and it is very toxic to cats and aquatic life.
Lawn & garden
Resolva
Resolva Xpress 24H RTU is pelargonic acid (nonanoic acid, CAS 112-05-0) at about 31 g/L — a contact fatty-acid desiccant, not glyphosate. Classic Resolva 24H is a different bottle (glyphosate). 170 ml of 186.7 g/L concentrate made up to 1 litre matches the trigger strength.
Lawn & garden
Provanto
Provanto Ultimate Bug Killer is deltamethrin at 15 g/L in a 30 ml garden-centre bottle. Half a millilitre per litre outdoors lands at about 7.5 mg/L — the same pyrethroid as a 1 L amenity pack of that 15 g/L emulsion. It is not permethrin ant dust, not SB soft soap, and it is very toxic to aquatic life and bees when spray is wet.
Lawn & garden
BugClear
BugClear Ultra is acetamiprid at 5 g/L — a neonicotinoid systemic, not a pyrethroid dust and not soft soap. Ten millilitres per litre lands at 0.05 g/L, matching the ornamental label. A 1 L amateur pack of that 5 g/L SL is the same molecule without the 200 ml garden-centre pour.
Lawn & garden
Weedol
Current Weedol Lawn (MAPP 17599) is MCPA at about 53.4 g/L plus fluroxypyr 10.7 g/L and clopyralid 5.4 g/L — a three-way selective turf herbicide, not Doff’s mecoprop-P/dicamba pair and not Pathclear glyphosate. A 1 L amateur pack of that same three-way is the working spray without the 500 ml carton tax.
Lawn & garden
Fungus Clear
Fungus Clear Ultra is triticonazole at 10.2 g/L in a 225 ml rose bottle. Fifteen millilitres per litre lands at about 0.15 g/L — the same DMI triazole as a weighed pinch of 96% technical. It is not myclobutanil (Rose Clear), not tebuconazole (Provanto Fungus Fighter), and not sulphur.
Lawn & garden
Resolva
Classic Resolva 24H RTU (MAPP 18921) is glyphosate diammonium at about 0.99% w/w — not Xpress pelargonic, and about twice the Pathclear 0.46% band. Thirty millilitres of 360 g/L glyphosate concentrate per litre matches that RTU. Read the cap: Xpress / Xtra Fast is a different bottle.
Lawn & garden
BugClear
BugClear Fruit & Veg Ultra is rapeseed oil at 17 g/L (CAS 8002-13-9) — a contact oil suffocant, not acetamiprid (BugClear Ultra concentrate) and not deltamethrin. Nineteen millilitres of refined rapeseed oil made up to a litre with a drop of washing-up liquid matches the trigger. It is not a neurotoxin and it will scorch oil-shy plants.
Lawn & garden
Westland
Westland’s 1.5 kg box is potassium sulphate (K₂SO₄, CAS 7778-80-5) at about 0-0-48 — potash only, not nitrate of potash (KNO₃, 13-0-46) and not Tomorite. A 25 kg agricultural sack is the same salt. Some bags carry potassium hydrogen sulphate and an eye-damage warning — read the SDS.
Lawn & garden
Westland
Westland’s 4 kg box is agricultural lime: limestone calcium carbonate (CAS 1317-65-3) with dolomite (CAS 16389-88-1) — not hydrated lime, not ferrous sulphate, and not a weedkiller. A 25 kg ag-lime sack is the same pH-up salt. Test the soil first; keep it off rhododendrons.
Lawn & garden
Westland
Westland’s 1.5 kg box is steamed bone meal — slow organic phosphate (typically about 3.5-18-0), not Growmore 7-7-7, not superphosphate 0-17-0, and not Fish, Blood & Bone (a three-meal blend). A 25 kg agricultural sack is the same ground bone. CAS 68476-17-1 is the meal, not a secret rooting hormone.
Lawn & garden
Nippon
Nippon Ant Killer Liquid is spinosad at 0.081% (CAS 168316-95-8) in a 25 g honey-sweet bait — Vitax SDS, not a spray. It is not Nippon Ant Killer Powder (permethrin dust) and not Provanto Ultimate Bug Killer (deltamethrin). Technical spinosad SC is a professional foliar insecticide: there is no sensible UK household bulk path that a householder can legally mix as ant bait. A 4 × 25 g pack of the same labelled liquid is the only honest stack.
Lawn & garden
Doff
Doff Rose Shield RTU is cypermethrin at 0.05 g/L plus myclobutanil at 0.075 g/L — a pyrethroid and a triazole in one trigger. Cypermethrin (CAS 52315-07-8) is not permethrin ant dust and not Provanto deltamethrin. The fungus half is the Rose Clear molecule. Dilute a householder-labelled cypermethrin concentrate to 50 ppm for the bug job.