Best Weed Killer Extra Strong Concentration of 2025
Last updated on 15/09/2025
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Best Choice
1
Elixir Gardens 360 g/l Glyphosate Commercial Industrial Strength Weed Killer | Treats up to 3332 sq.m | Concentrated Herbicide/Weedkiller | 2 x 1 Litre Bottle + Measuring Cup & Gloves
Elixir Gardens
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Elixir Gardens
Elixir Gardens 360 g/l Glyphosate Commercial Industrial Strength Weed Killer | Treats up to 3332 sq.m | Concentrated Herbicide/Weedkiller | 2 x 1 Litre Bottle + Measuring Cup & Gloves
Why we love it
- Effective weed control.
- Super concentrated formula.
- Large coverage area.
Main Highlights
- Quickly & effectively clears areas of weeds and unwanted vegetation.
- Super concentrated 360 gram/litre Glyphosate formula. DILUTION REQUIRED. Kills & eliminates weeds at the root.
- 2 litres treats up to 3332 sq. meters.
- Perfect for a range of hard surfaces such as patios, decking, aggregates and driveways.
- PLEASE NOTE: Depending on the type of weed and climate, please allow up to 7 days to see the effects of the treatment. Some weeds may take up to 4 weeks for the weedkiller to take effect.
- IMPORTANT STOCK UPDATE: Depending on current stock levels you may receive a 2 x 1 Litre Glyphosate Bottle. This is exactly the same 360g/l glyphosate formula and is produced by the same manufacturer as Elixir Gardens Glyphosate.
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Value for Money
2
HOME & GARDEN WEED CONTROL HERBICIDE 2L | INDUSTRIAL STRENGTH GLYPHOSATE KILLER FOR EFFECTIVE OF ANNUAL PERENNIAL GRASS BROAD LEAVED WEEDS
Agrigem
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Agrigem
HOME & GARDEN WEED CONTROL HERBICIDE 2L | INDUSTRIAL STRENGTH GLYPHOSATE KILLER FOR EFFECTIVE OF ANNUAL PERENNIAL GRASS BROAD LEAVED WEEDS
Why we love it
- Powerful weed control solution.
- Effective on various weeds.
- Easy-to-use concentrated formula.
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3
2L Gallup Home & Garden - SUPER STRENGTH 360g Glyphosate Weedkiller Effective on Annual Perennial Grass, Broad Leaved Weeds (MOST EFFECTIVE WEEDKILLER TOTAL WEEDKILLER)
Generic
4% Off
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Generic
2L Gallup Home & Garden - SUPER STRENGTH 360g Glyphosate Weedkiller Effective on Annual Perennial Grass, Broad Leaved Weeds (MOST EFFECTIVE WEEDKILLER TOTAL WEEDKILLER)
4% Off
Why we love it
- Powerful weed control solution.
- User-friendly application guidelines.
- Versatile for various garden areas.
Main Highlights
- 360g of Glyphosate per litre of product ensures effective weed control of all types of garden weeds including: docks, nettles, willowherb, dandelion, bindweed, grasses and more.
- Inudstrial strength weedkiller with amtaeur use label ensures you are getting the best of the best.
- Suitable for paths, driveways, patios and garden areas offering comprehensive weed management.
- Best applied with a sprayer just dilute and apply for fast visible results. Includes clear instructions for safe usage.
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4
Super Strength Glyphosate Home & Garden 1L Powerful Weed Killer (x2 bottles)
Generic
4% Off
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Generic
Super Strength Glyphosate Home & Garden 1L Powerful Weed Killer (x2 bottles)
4% Off
Why we love it
- Effective weed elimination results.
- Easy application with clear instructions.
- Excellent coverage for great value.
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5
Twin Pack Super Strength Gallup Home & Garden Glyphosate Weedkiller, Gallup weed killer, 1L + Free Measuring cups 30ml, Pack of 2 x 1 Litre bottles
Generic
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Generic
Twin Pack Super Strength Gallup Home & Garden Glyphosate Weedkiller, Gallup weed killer, 1L + Free Measuring cups 30ml, Pack of 2 x 1 Litre bottles
Why we love it
- Professional strength for home use.
- Easy to mix and apply.
- Effectively kills tough weeds.
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6
Roundup Optima+ Total Weedkiller, Concentrate, 1 Litre
Roundup
Free Shipping
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Roundup
Roundup Optima+ Total Weedkiller, Concentrate, 1 Litre
Free Shipping
Why we love it
- Deep root weed annihilation.
- Efficient for vast areas.
- Environmentally conscious degradation.
Main Highlights
- Super oncentrate formula killing weeds to the root
- Ideal for treating large areas of weeds
- Kills the roots so weeds don't come back
- Children and pets need not be excluded from treated areas (once dry)
- Degraded in the soil by micro organisms
- Coverage of 810 m2
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7
Home & Garden Weed Killer 1L - Glyphosate High Industrial Concentrate Strength Herbicide Weed Killer for Effective Perennial Grass & Broad Leaved Weeds
Generic
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Generic
Home & Garden Weed Killer 1L - Glyphosate High Industrial Concentrate Strength Herbicide Weed Killer for Effective Perennial Grass & Broad Leaved Weeds
Why we love it
- Eliminates many common weeds.
- Industrial strength for effectiveness.
- Covers large areas efficiently.
Main Highlights
- Eliminates a wide range of common weeds, including grass, dandelions, nettles, and more.
- Industrial Formula: Gallup Contains 360g/L glyphosate for superior performance in home and garden applications.
- Suitable for paths, driveways, patios, and garden areas, offering comprehensive weed management.
- A single 1L bottle of Gallup covers a large area, providing excellent value for maintaining a weed-free outdoor space.
- Best used with a sprayer - Just dilute and apply with a sprayer for fast, visible results. Includes clear instructions for safe use.
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8
Rootblast | Super Strength Concentrated Total Weed Killer - Glyphosate for Effective Weed Control - Kills Weeds down to the their roots (1 x 1L), Packaging May Vary
Rootblast
16% OffFree Shipping
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Rootblast
Rootblast | Super Strength Concentrated Total Weed Killer - Glyphosate for Effective Weed Control - Kills Weeds down to the their roots (1 x 1L), Packaging May Vary
16% OffFree Shipping
Why we love it
- Concentrated formula enhances potency.
- Glyphosate targets stubborn weeds.
- Root-level action ensures efficacy.
Main Highlights
- CONCENTRATED FORMULA: Rootblast weed killer is a powerful solution that comes in a concentrated form, making it highly effective at killing weeds down to the roots.
- SUPER STRENGTH GLYPHOSATE: With a high concentration of glyphosate, Rootblast provides effective control over a wide range of weeds, including tough-to-kill perennial weeds.
- KILLS WEEDS AT THE ROOT: Unlike other weed killers that only target the leaves of weeds, Rootblast penetrates deep into the soil to kill weeds at the root, preventing them from growing back.
- EASY TO USE: Simply dilute Rootblast with water according to the instructions and apply to the affected areas with a sprayer for quick and easy application.
- LARGE COVERAGE AREA: One 1L bottle of Rootblast can cover up to 1,666 square meters of land, making it a cost-effective solution for large gardens and properties. Choose Rootblast for powerful weed control and a weed-free garden all year round.
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9
Elixir Gardens 1 Litre 360 g/l Glyphosate Commercial Industrial Strength Weed Killer | Treats up to 1666 sq.m | Concentrated Herbicide/Weedkiller
Elixir Gardens
4% Off
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Elixir Gardens
Elixir Gardens 1 Litre 360 g/l Glyphosate Commercial Industrial Strength Weed Killer | Treats up to 1666 sq.m | Concentrated Herbicide/Weedkiller
4% Off
Why we love it
- Effective weed clearance.
- Highly concentrated formula.
- Extensive coverage area.
Main Highlights
- Quickly & effectively clears areas of weeds and unwanted vegetation.
- Super-concentrated 360 gram/litre Glyphosate formula. DILUTION REQUIRED. Kills & eliminates weeds at the root.
- One 1 Litre bottle treats up to 1666 sq. meters!
- Perfect for a range of hard surfaces such as patios, decking, aggregates and driveways.
- PLEASE NOTE: Depending on the type of weed and climate, please allow up to 7 days to see the effects of the treatment. Some weeds may take up to 4 weeks for the weedkiller to take effect.
- IMPORTANT STOCK UPDATE: Depending on current stock levels you may receive a 1 Litre Gallup Glyphosate Bottle. This is exactly the same 360g/l glyphosate formula and is produced by the same manufacturer as Elixir Gardens Glyphosate.
Show More
10
Deadfast PTO0010P Concentrated Weed Killer Sachets, 12 x 100 ml,Black
Deadfast
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Deadfast
Deadfast PTO0010P Concentrated Weed Killer Sachets, 12 x 100 ml,Black
Why we love it
- Potent systemic formula.
- Targets roots effectively.
- Varied plant response time.
Main Highlights
- Systemic concentrated weedkiller
- Action kills both above and below the ground
- sometimes it can take longer to take affect depending on the species of the plant
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