Whilst some other weed killers require dilution, like the Weedol and SBK options featured on this page, this Roundup Weed Killer gets sprayed straight from the bottle. Some wild bluebells also sprouted in the wrong place at the wrong time only to become collateral casualties of the cause. While it takes longer than others on the market to see results, the results even so were impressive. Products with excessively harmful chemicals, such as Glyphosate, were marked down, as these pose a risk to wildlife.

We were also impressed with the Roundp formula, as it did a good job and is easier to use, but it does allegedly kill bumble bees, something its competitor is keen to point out that it doesn’t (so long as you don’t spray flowers or the bees directly), however it’s not clear when you can start replanting with the Resolva XL. Gladly, when it comes to sourcing a decent weed killer for maintaining your garden or green outdoor space, many manufacturers have clocked onto the importance of offering eco-friendly products. It can see off hardier plants like brambles, nettles and thistles, and is the best weed killer for clearing overgrown, unruly spaces. It’s best used in dry spells, so that rain can’t wash it away before it’s had a chance to work, and should be used with care around wildlife, pets and children due to its Glyphosate content.The nozzle can be twisted to select either a ‘jet’ or a mist; however, the mist is not particularly fine. Spray it on most weeds and grasses and they will be curling up and looking sickly within the first day, as it goes to work on the foliage before busting up the roots. We run cross-comparisons against new weed killers and existing favourites in the same test areas, to see which are the fastest and most effective, and look for any adverse effects on nearby plants or the lawn. For instance, they might tackle lawn weeds like clover or dandelions while leaving your grass alone.

Luckily, today’s top weed killers are up to the job, and they’re a whole lot easier on the garden – and on the local wildlife – than some of the more brutal options gardeners used to employ. Weed killers that killed the entire plant, including the roots, were rated the best, as these are the only products that ensure long-lasting results.The large 5 L container comes with a hose and nozzle already attached, so you just carry it around whilst targeting weeds.