Roundup's unique dual formulation was specifically developed for use on hard-to-kill and tough weeds and grasses, roots and all. Kills onion weed, blackberry, English ivy, asparagus fern, wandering trad, and many more.
Roundup's unique dual formulation was specifically developed for use on hard-to-kill and tough weeds and grasses, roots and all. Kills onion weed, blackberry, English ivy, asparagus fern, wandering trad, and many more.
in 3 offers
The lowest price for Roundup 2.5L Tough Ready to Use Pump 'n Go Weedkiller right now is $65.48 at Bunnings Warehouse, compared across 3 retailers.
The all-time low was $61.17 on 29 July 2025 — today's price is 7% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 3 June 2026.
Roundup 2.5L Tough Ready to Use Pump 'n Go Weedkiller
Roundup's unique dual formulation was specifically developed for use on hard-to-kill and tough weeds and grasses, roots and all. Kills onion weed, blackberry, English ivy, asparagus fern, wandering trad, and many more.
Roundup's unique dual formulation was specifically developed for use on hard-to-kill and tough weeds and grasses, roots and all. Kills onion weed, blackberry, English ivy, asparagus fern, wandering trad, and many more.
Last updated at 03/06/2026 03:18:46
Roundup 2.5L Tough Ready To Use Pump 'N Go Weedkiller
Delivery $10
Roundup 2.5L Tough Ready To Use Pump 'N Go Weedkiller
Free next-day delivery
Roundup 2.5l Tough Ready To Use Pump 'n Go Weedkiller
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on bunnings.com.au
Bought this to try out instead of the 1L concentrate. Considering the volume of 'prepared' weedkiller, it makes the inbuilt pump and spray phenomenally expensive. (100 doses of 10ml concentrate per 1L of water produces 100L of weedkiller at a cost of 58c per L. Compare that to this ready-to-use product - 2.5L at a cost of $17.98 per L.At best, the spray attachment is pretty shoddy plastic specimen. No matter how much pumping I did, the spray was just a weak dribble, no matter how much I screwed up the nozzle, I could not get any sort of 'spray'.
originally posted on bunnings.com.au
Where do I start!The bottle design is horrible. Would it kill to have a longer lever for the sprayer? Fingers get really tired after a few sprays.But the best part is that it didn’t even kill anything!Even after 24 hours my weeds are exactly where they were before the spray.
originally posted on bunnings.com.au
Not sure what the other 2 reviewers were doing however this is a great broadleaf herbicide. In the lawn areas with sporadic weeds, they disappeared after 2 weeks of applying the product. Simply vanished like magic. In the areas which were basically all weeds, the weeds are brown / yellow and dead. Easy to remove as required or just let the lawn grow over the area over time. Blue colour allows easy identification of where you have sprayed. Pet friendly (cat).
| Total Weight | 3.11kg |
| Volume | 2.5L |
| Selective (Yes/No) | No |
Roundup 2.5L Tough Ready To Use Pump 'N Go Weedkiller
Delivery $10
Roundup 2.5L Tough Ready To Use Pump 'N Go Weedkiller
Free next-day delivery
Roundup 2.5l Tough Ready To Use Pump 'n Go Weedkiller
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Bought this to try out instead of the 1L concentrate. Considering the volume of 'prepared' weedkiller, it makes the inbuilt pump and spray phenomenally expensive. (100 doses of 10ml concentrate per 1L of water produces 100L of weedkiller at a cost of 58c per L. Compare that to this ready-to-use product - 2.5L at a cost of $17.98 per L.At best, the spray attachment is pretty shoddy plastic specimen. No matter how much pumping I did, the spray was just a weak dribble, no matter how much I screwed up the nozzle, I could not get any sort of 'spray'.
Where do I start!The bottle design is horrible. Would it kill to have a longer lever for the sprayer? Fingers get really tired after a few sprays.But the best part is that it didn’t even kill anything!Even after 24 hours my weeds are exactly where they were before the spray.
Not sure what the other 2 reviewers were doing however this is a great broadleaf herbicide. In the lawn areas with sporadic weeds, they disappeared after 2 weeks of applying the product. Simply vanished like magic. In the areas which were basically all weeds, the weeds are brown / yellow and dead. Easy to remove as required or just let the lawn grow over the area over time. Blue colour allows easy identification of where you have sprayed. Pet friendly (cat).
I use Roundup to kill all weeds and it works. When I found this product "For Lawns" I was a little hesitant that it only killed weeds. After using it on a very small area for starters, the results were amazing. Clover and weeds impacted within a few days and totally gone a couple later. Buy the 5 litre bottle for a couple of dollars more than 2.5 litre. Use your own pressure / trigger bottle.
Worked really well at killing weeds. Also worked well at killing the lawn. Buffalo did not survive. It says on the label that the grass will turn brown and will go back to normal after a few weeks. 2 months later and the grass is officially dead. No different to normal roundup that kills everything it touches.
I bought this because it explicitly says on the front that it is buffalo friendly. I spot sprayed a few weeds and everywhere I did I now have a little dead patch. I did one larger area and a few little bits survived and are coming back but most is dead. It's been several weeks so this wasn't temporary dying back, much of the grass is actually dead.
I bought this last week to control clover. Product is good but don’t waste your money on the pump & go spray attachment, it doesn’t work. Followed the instructions & pumped as directed but nothing comes out of the spray attachment, tried multiple times. Expensive 2.5L @ $45, better to purchase the 5L @ $50 & transfer to your own spray bottle
Bought item to replace Weedol path clear. Though it would as good as if not better.Weedol started too show results within 24 hours. Still no results from Roundup after 5 days, and more expensive. Very disappointed.
DO NOT USE THIS PRODUCT ON LAWNS. This is ANYTHING but safe on lawns, and killed every blade of Buffalo it touched, despite it claiming 'Buffalo friendly'. I'm apalled they can market this product with these claims. I am having to rebuild my lawn from a dustbowl at considerable expense. Complaints to RoundUp go unanswered. Ironically, the only plant still growing are weeds. Even used as a 'spot' weed killer it destroyed everything around it. I'm told the DICAMBA is the unfriendly agent.
The sprayer itself works the first time, but after that it just won't allow pressure to be pumped up and becomes very hard to get more than a trickle out. I bought the regular roundup in the same ready to use sprayer and had the same problem. Cheap and nasty product.When it comes to the actual performance of the poison, I had to spray clovers and regular lawn weeds 3 times over the course of 3 weeks to get them to start turning brown.Other products I've used from a competitor brand, have always worked within days without damaging the lawn. I tried roundup because of the media reviews, but clearly they are all paid to say it's great.
| Total Weight | 3.11kg |
| Volume | 2.5L |
| Selective (Yes/No) | No |
