In 2023, several top-performing weed killers have gained popularity for their effectiveness and ease of use. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others.

Mix 1 part bleach to 5 parts water, then scrub the solution over stubborn stains using a sponge or toothbrush. Check any manufacturer cautions first and test the solution on a hidden patch of the furniture if you are uncertain about its use. Soak garden tools in a solution of one part bleach to four parts water to disinfect and sanitize them, which reduces the risk of spreading diseases from plant to plant.

This means more of the weed killer is absorbed through the leaves and works it way down to the roots - and obviously it's the roots you need to kill to stop it growing back again. But bleach will also kill grass, flowers, and other vegetation (and may lighten patio surfaces), so take care where you aim.

Bleach will only damage the leaves, not roots so it isn't ever going to be as effective as a specialist perennial weed killer. Seems like every time I pick up a paper there's a report of some study somewhere suggesting something else is bad for us - bacon, red meat, red wine, any wine etc etc. After bleach has been poured on an area, the soil pH becomes very high, and nothing will grow there for quite some time (often several months). Remember to consider the best weed killer for your specific needs and banish weeds for good, creating a beautiful garden that flourishes all year round.

Calcium hypochlorite actually has a higher concentration of chlorine than traditional liquid bleach. For that you'd really want to jet them out, let it dry then brush in kiln dried sand with a bit of salt mixed in (or other chemical of your choice) if you want to make it unfriendly to things growing. He noted that bleach is a “very effective” method for not only killing weeds, but “preventing” them from growing again.

Bleach may be a tempting quick fix for weed control, but its harmful consequences on the environment and surrounding vegetation far outweigh any short-term benefits.

Even when diluted Sodium Hypochlorite still outperforms the rest* and can treat up to 10m² per litre. Although you’re not applying bleach directly to the soil, it’s not hard to see how it could make its way there eventually.

If you don't mind using chemicals to kill weeds then your best choice is probably a commercial weed killer. Their targeted approach minimizes collateral damage to non-target plants and reduces the risk of soil contamination. A highly diluted bleach solution ( 2 tablespoons of bleach for 2 litres of water) can be sprayed onto the leaves of affected plants.Now you have a host of healthy options to commercial chemical weed killers that will cost you a fraction of what you might have paid. If you’re looking for a guaranteed method to remove Japanese knotweed, backed by industry accredited schemes, then speak to the experts at Japanese Knotweed Specialists. This end-point is seen in laboratory animals and, by analogy with chlorate, in humans exposed to high doses in poisoning incidents.