Roundup Fast Action Weedkiller Pump 'N Go Spray – 5L Ready-to-Use Glyphosate Formula – Kills Weeds & Roots with Visible Resul
Reviewed 9 August 2026 · price checked live
Check price on Amazon →Overview
Roundup Fast Action Weedkiller Pump 'N Go Spray sits in our gardening listings, where we rank by how buyers actually rate a product rather than by brand. The manufacturer says: 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; up to 10 minutes of continuous spray when using 5 L option. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.4 out of 5 from 25,367 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Roundup
- Amazon rating
- 4.4 / 5 from 25,367 ratings
- vs Gardening
- level with the category median of 4.4
- Rank in category
- 10 of 39 rated gardening we track
- Price position
- Towards the top of the range (category spans £2.29 to £31.99)
- How proven
- One of the most-reviewed in its category
How it compares in Gardening
Across the 39 rated gardening products we track, the typical score is 4.4 out of 5. This one sits at 4.4, which is around the middle of the category. Ratings alone will not separate it from its rivals here, so price and the specifics below matter more than the star count.
It carries 25,367 ratings against a category median of 4,311. A rating from a large base is harder to distort and tends to hold up over time, so a high score here means more than the same score on a new listing.
On price it sits in the upper third of a category running from £2.29 to £31.99, where the midpoint is about £8.99. Paying above the category norm needs a reason beyond the rating, because the score alone does not justify the gap here.
Worked out from the 39 gardening products in our catalogue, not from the brand's own claims. How we rank →
Key features
- 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; up to 10 minutes of continuous spray when using 5 L option
- Children and pets need not be excluded from treated areas (once dry)
- The Pump N Go pressure sprayer is easily refillable, a one- touch trigger prevents hand fatique and extendable lance avoids bending.
- Degraded in the soil by micro organisms
- Leaves no harmful residues to allow replanting
