Best weed killer: 5 top picks for keeping weeds at bay

The best weed killer will keep your garden free from unwanted visitors. Here's our top choices for tidying up lawns, patios and paths

the best weed killer: lawn free of weeds
(Image credit: Amazon)

Most gardeners recommend having the best weed killer in your arsenal if you’re looking for an easy way to keep weeds at bay and allow your garden to flourish. Equally, you’ll quickly regard weed killer as an essential if you’ve spotted weeds poking up from beneath your driveway, patio, or decking.

But, which weed killers actually work? Our guide is here to talk you through the best options available, so that you can get on with the more enjoyable aspects of gardening sooner. Our options cover everything from fast-action solutions to child- and pre-friendly options so you can choose the best one for your garden. 

Scroll to see our top picks, then take a look at our guide to the best lawn mowers and get your lawn in tip-top condition. 

The best weed killer 2020

the best weedkiller: Resolva Ready To Use Weedkiller

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1. Resolva Ready To Use Weedkiller

Best weedkiller for spot treating weeds: tackle weeds and restore your lawn to its former glory

Specifications
Quantity: 3L
Speed of Result: As soon as 24 hours
Fertiliser: No
Type : Spray
Reasons to buy
+See results within as little as 24 hours+Great for spot-treating weeds
Reasons to avoid
-No fertiliser

The Resolva Ready To Use Weedkiller is the best weed killer available if you’re looking to spot treat weeds in your lawn without causing lasting damage to grass and surrounding plants. That said, it can also be used to treat larger surface areas if required.

Capable of tackling everything from dock leaves and nettles to ragwort, thistles, daisies and buttercups, this weed killer comes in an easy use spray bottle and is capable of tackling as much as 40m in one use.

Buy Resolva Ready To Use Weedkiller

the best weedkiller: Mo Bacter Organic Lawn Fertiliser

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2. Mo Bacter Organic Lawn Fertiliser

Best organic weed killer for tackling moss: reaching for a fertiliser is often the best way to tackle garden moss

Specifications
Quantity: 7.5kg
Speed of Result: May take a little longer to see results
Fertiliser: Yes
Type : Fertiliser
Reasons to buy
+Great at tackling moss+Fertilises grass while tackling weeds+Free of harmful chemicals
Reasons to avoid
-Won't see results straight away

If your main concern is moss, the best weed killer is without doubt the Mo Bacter Organic Lawn Fertiliser. This may surprise some people as this product is not strictly a weed killer, but we’re here to reassure you that it is effective in tackling moss. But the best bit is that it also fertilises surrounding grass in the process, which is great news for those concerned about damaging their lawn in the weed killing process.

Plant and animal safe, this is a great option for families with pets, children or significant wildlife. It’s also organic and will cause minimal damage to the soil, or local ecosystem.

Buy Mo Bacter Organic Lawn Fertiliser

the best weedkiller: Weedol Root Kill Plus

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3. Weedol Root Kill Plus

Best weed killer for immediate results: kill weeds instantly and reclaim your garden

Specifications
Quantity: 1L
Speed of Result: Immediate results
Fertiliser: No
Type : Spray
Reasons to buy
+Immediate results+Tackles weeds right down to the root+Affordable
Reasons to avoid
-May harm surrounding plant life

If you’re after immediate results, look no further than Weedol Root Kill Plus. Its fast acting formula tackles weeds right down to the root and is perfect for spot use in the garden as well as on patios and driveways, as well as use in much larger areas.

Capable of tackling brambles, nettles, thistles, docks and other deep rooted weeds, this weed killer is one of the most affordable options on our list which is great news for those tackling weeds on a budget.

Buy Weedol Root Kill Plus

the best weedkiller: Weedol Lawn Weedkiller

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4. Weedol Lawn Weedkiller

Best budget weedkiller: tackle weeds with minimal hassle – and without spending a fortune

Specifications
Quantity: 1L
Speed of Result: Immediate results
Fertiliser: No
Type : Spray
Reasons to buy
+Immediate results+Tackles weeds right down to the root+Affordable
Reasons to avoid
-May harm surrounding plant life

Another of our favourite options for lawns, the Weedol Lawn Weedkiller protects your lawn while eradicating weeds. 

This is great news for those on the mission to achieve the perfect lawn, or looking to tackle persistent weeds bedded in amongst other plant life. Tackle everything from dandelions and daisies to clover, and much more.

Buy Weedol Lawn Weedkiller 

the best weedkiller: EverGreen Complete 4-in-1 Lawn Care, Lawn Food, Weed and Moss Killer

(Image credit: Amazon)

5. EverGreen Complete 4-in-1 Lawn Care, Lawn Food, Weed and Moss Killer

Best weed killer and fertiliser: effectively feed your lawn while you tackle weeds

Specifications
Quantity: 1L
Speed of Result: May take a little longer to see results
Fertiliser: Yes
Type : Fertiliser
Reasons to buy
+Feeds lawn while killing weeds+Leads to fuller, thicker grass
Reasons to avoid
-Won't see immediate results

Another great option if you’re looking to rid your garden of weeds while also encouraging your lawn to prosper, the EverGreen Complete 4-in-1 Lawn Care, Lawn Food, Weed and Moss Killer has everything you might need to care for your garden lawn effectively.

Treating your lawn with this solution will not only eradicate unwanted weeds and moss, it will also lead to thicker, fuller grass.

Buy EverGreen Complete 4-in-1 Lawn Care, Lawn Food, Weed and Moss Killer

How to buy the best weed killer

When it comes to buying the best weed killer, there are a few factors worth bearing in mind to ensure you choose the right product to achieve the outcomes you're after. These include:

How quickly do you want to see results?

If you're using a weed killer on a path, driveway, or an area where you're not too concerned about affecting surrounding plant life, there's no problem with choosing a fast-acting solution that will stop weeds in their tracks.

However, you may want to opt for a slightly longer term solution – take a look at the fertilisers we've included above –  if you're looking to eradicate weeds without affecting the rest of your lawn.

How large is the area that you're treating?

If you're looking to spot treat the weeds in your garden, you may be able to get away with choosing a small spray bottle, whereas a fertiliser, or a weed killer with a hose attached, may be a better solution for larger spaces.

Do you want to feed your lawn in the process?

If you're looking to eradicate your lawn of weeds in the long term, it may be worth opting for fertiliser which will help your grass to grow back thicker and fuller, preventing weeds from growing back in the process.

More top ideas for pristine lawns: