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3 March 2021

Best lawn feed with moss and weed killer

If grass isn't the only thing growing on your lawn then you need feed that can tackle moss and weeds. See which lawn treatments we rated highest.
Granulated fertilizer feed being thrown across a lawn
Rebecca Duff

If your lawn is relatively trouble-free then a standard lawn feed is your best solution. But if your lawn is plagued with moss and weeds then you're going to need a feed that can treat these problems. 

Whether you're struggling to control moss, weeds or both, there's lawn treatment that can help, but they don't all do an excellent job. Some will work wonders for your grass, but not make a dent in the weeds and moss, while others do a better job at controlling your weeds than improving your grass.

We've tested several lawn treatments from top brands, including Scotts and Evergreen to see if there's any lawn treatment that's an excellent all-rounder.

Once your grass is looking healthy, keep it in shape with a Best Buy lawn mower and grass trimmer. 

Best lawn feed and weed killer

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Lawn feed and weed killer
Member content
77% This Best Buy granular lawn feed worked wonders on our grass and it was one of the best at killing weeds, too. It was also the easiest lawn feed to spread. £3.34 per 30sq m
Member content
60% We were happy with how this liquid feed reinvigorated our grass, but it didn't make much of a dent in the weeds in our second plot. It's also very expensive. £10.50 per 30sq m
Lawn feed and moss killer
Member content
68% If moss is taking over your garden then this Best Buy granular feed is your best bet at getting rid of it. Its effect on improving the grass wasn't as significant as some dedicated lawn feeds, but moss doesn't stand a chance. £3 per 30sq m
Lawn feed with weed and moss killer
Member content
73% This Best Buy granular feed will make mulch out of moss and weeds and it will get your grass looking gorgeous in the process. It's one of the best we've tested, which is even more impressive considering it's an all-rounder. It's pretty cheap, too. £1.50 per 30sq m
Member content
69% This Best Buy 4 in 1 feed was terrific on our weed-covered plot, but it lagged slightly behind the top all-rounder on mossy and normal lawns. It's still a Best Buy though and if you pick it up you'll be satisfied with the results. £3.30 per 30sq m

Is a granular or liquid lawn treatment best for killing moss and weeds?

The type of product shouldn't make a difference to how well it handles weeds and moss. Typically, granular treatments are easier to spread over large areas than liquid ones, but a Best Buy liquid feed shouldn't have any advantages over a Best Buy granular one when it comes to controlling weeds and moss.

Which treatment does your lawn need? 

Healthy grass is your best defence against the build up of moss and weeds. Choose a Best Buy lawn feed to make sure your grass is fighting fit and ready to take on the mossy scourge. If you're lucky enough to only get the odd weed then dig them out or spray them with a Best Buy weed killer. 

If your garden is large then using a liquid lawn feed could be a real chore. Granular is usually easier to spread over larger areas, but liquid feed could be ideal for smaller plots. Typically, you'll need to reapply it every six to eight weeks to see results.

Artificial grass is a great solution for problem areas in your garden. See the best and worst artificial grass

How to deal with moss

Moss thrives in the shade and you'll often find it growing under trees. Consider cutting back some of the lower branches, thinning the coverage and letting more light through. 

If it's compacted, pushing a garden fork into your turf every 15cm or so will get some much needed air back into your grass. This will also help prevent moss. 

You should regularly move heavy items around the garden, so the grass underneath can get a breather. And if you've been using moss killer then remember to rake away the dead moss. You'll need to seed the bare patches with more grass otherwise the moss could simply re-grow. Help the new grass grow quicker by adding some top dressing to the bare patches. 

See our best lawn rakers and scarifiers

Beat the weeds without chemicals 

If you'd rather not use chemicals on your lawn then you're going to need to get your hands dirty. 

  1. Dig out the weeds, making sure to get as much of the root as possible.
  2. Re-sow the area with grass seed. The more grass you have the less likely weeds are to grow, so you can always overseed your lawn to thicken it. 
  3. Rake up any debris on your lawn first then spread grass seed over your entire plot. 
  4. If it doesn't rain then water the seed, too. 

Why Which? lawn feed reviews are better

We sprinkle lawn feed over separate 4sq m plots to see which one is best at restoring tired grass. A team of experts monitor each plot over the summer to see how much each product improves the quality, colour and health of the grass.

If the lawn feed also kills weeds then we'll spread it over another 4sq m plot that has plenty of unwanted weeds to see how well it halts growth and kills what's already there.

Moss killing lawn feed is spread over a plot that contains, at least, 45% moss to see if how well it deals with the problem. 

Any lawn feed that professes to handle weeds and moss will be spread across a weed-filled plot as well as a mossy one, so we can measure whether it does a better job at tackling one over the other.

Whether you're sowing seeds, raising young plants or using containers use one of our best composts.

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