Price: £5.99 - £5.09
(as of Jun 28, 2025 18:07:35 UTC – Details)
From the manufacturer
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Results in 48 hours
Our fast acting formula means visible results in just 48 hours, working right in front of your eyes!
Kills right to the roots
Travels through the leaves straight to the root to prevent weeds from growing back or regenerating.
Perfect for paths, drives, patios and flower beds
Use all over the garden on paths, drives, patios and flowerbeds to keep them free from pesky weeds.
Degrades naturally in soil to allow replanting
Degrades naturally in soil leaving no residue, meaning you can start replanting in just 7 days.
1 Results In 48 Hours
2 Kills To The Root
3 Paths, Drives, Flowerbeds
4 Replant In 7 Days
Fast and effective weed control that gets to work within hours of application
Ready to use straight from the bottle, this premixed glyphosate formula moves through weeds all the way to the roots and is naturally broken down within a week by micro-organisms in the soil, so you can get planting again.
Our Pump ‘N Go sprayer offers a one touch trigger system and an extendable wand – it gets you closer to weeds without bending, so you can remove weeds faster and easier than ever – 3 mins of continuous spray with the 2.5 litre pack, and 10 mins in the 5 litre pack.
Why should I use ROUNDUP Fast Action Ready To Use Weedkiller?
A multi-purpose weedkiller, ROUNDUP Fast Action Ready To Use Weedkiller kills annual and deep rooted perennial weeds, including grasses, dandelions, docks, nettles, ground elder, bindweed and thistles. It is inactivated on contact with soil.
Where can I use ROUNDUP Fast Action Ready To Use Weedkiller?
Approved for use all around the garden, on gravel areas, paths, drives and along fences. ROUNDUP Fast Action Ready to Use Weedkiller can be used to clean up weedy areas before planting vegetables, flowers, shrubs and to renovate overgrown areas.
When should I use ROUNDUP Fast Action Ready To Use Weedkiller?
Spray any time when weeds are actively growing and have adequate leaf area to absorb spray. Apply in calm conditions to avoid drift onto cultivated plants. Rain within 6 hours of spraying reduces effectiveness and repeat treatments may be necessary.
How do I use ROUNDUP Fast Action Ready To Use Weedkiller?
Apply spray evenly to wet the leaves of the weeds, avoiding run-off. Leave weeds 7 days before digging or soil cultivation, for the weedkiller to move to the roots. Repeat application may be necessary, should new growth occur.
Is ROUNDUP Fast Action Ready To Use Weedkiller safe to use on areas used by children and pets?
Keep children and pets away from treated areas until spray has dried. Keep out of the reach of children.
Compare our range of weed control products
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Customer Reviews
4.4 out of 5 stars 15,150
4.5 out of 5 stars 1,344
4.1 out of 5 stars 227
4.4 out of 5 stars 5,749
4.3 out of 5 stars 6,979
4.3 out of 5 stars 5,911
Price
£5.09£5.09
£48.24£48.24
£6.00£6.00
£8.99£8.99
£8.00£8.00
£16.80£16.80
Ready to use
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Fast-acting
Within 1-2 days
Within 2-4 days
From 1 hour
Within 1-2 days
Within days
Within days
Naturally breaks down in soil
In 7 days
In 7 days
In 1 day
In 7 days
In 7 days
In 7 days
Kills weeds to root (systemic)
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Allows replanting
In 7 days
In 7 days
In 1 day
In 7 days
In 7 days
In 7 days
For beds, borders, veg patches
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For paths, patios, drives
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For tough weeds
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For tree and shrub stumps
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Fast action ready to use weed killer that kills the weeds and roots with visible results in 1-2 days
Kills most garden weeds with a single application
Children and pets need not be excluded from treated areas (once dry)
Degraded in the soil by micro organisms
Leaves no harmful residues to allow replanting
Product should be applied to the weed only.
Customers say
Customers find the weed killer effective, noting it works within the first day or two and clears driveways of weeds. The product is easy to use and offers good value for money, with one customer mentioning it remains weed-free for weeks. The spray effectiveness and strength receive mixed reviews – while some say it works well and is strong, others report issues with the spray nozzle leaking and the product not lasting long. The speed of action also receives mixed feedback, with some finding it fast-acting while others say it takes a long time to be effective.
