Weed tips

  • If the garden beds where you intend planting spring flowering bulbs and annuals are infested with weeds, or the remains of summer annuals now past their best, spray with Roundup on a dry, still day. Planting can be started a week or two later.

Garden maintenance in March

  • Autumn is an ideal time to plant evergreen shrubs and trees. The soil is still warm enough to ensure rapid establishment before the weather cools. Water them if the weather is dry
  • Plant seedlings of winter vegetables
  • Direct seed Sweet Peas on St Patrick’s Day (March 17). Old wives’ tale or fact – it seems to work
  • Lift and divide overgrown clumps of summer perennials now starting to die off
  • Fertilise the lawn with Lawn Builder Regular; use a spreader and be sure to apply at exactly the rate recommended on the pack. Re-turf or re-seed bare patches
  • Prune shrubs that have flowered over the summer months 


Discover the whole range of Roundup Weedkillers

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3 simple steps

  1. Measure the area you need to cover Use our quick and easy to use size calculator
  2. Watch our easy to follow video tutorials View our video tutorial library
  3. Buy the right Roundup for you Select your dispenser and purchase here



What are the origins of Roundup?

A Click here for the answer

Roundup was first developed for the agricultural industry to help farmers overcome large-scale problems with weeds. This same science and technology has been applied to create a range of weed killing products ideal for domestic use. So, rest easy in the knowledge that you’re using the weed killer the professionals use.


Can I put it on stronger? Will that work better?

A Click here for the answer

We have carefully calculated the best rates at which to apply for each type of weed problem. Applying at a strong rate is not recommended and will not result in better performance. Please ensure that you read the label before use and use pesticides safely.


Does the Concentrate need using up straight away after mixing?

A Click here for the answer

It’s always good practice to only mix up what you need for that treatment, but you can retain the unused solution for up to a week, since a gradual loss of activity will occur. Make sure that you store any weedkiller safely away from the reach of children and pets.

Why to choose Roundup Weedkiller


Use the strongest weed killer to get rid of tough garden weeds

Thanks to glyphosate, Roundup has an effective weed killing action


Buy a cheap, but very strong weed killer for your garden maintenance

Roundup Garden products are available in all garden centers.


Use the strongest weed killer to get rid of tough garden weeds

Thanks to glyphosate, Roundup has an effective weed killing action!

Where can I buy Roundup Weedkiller

Roundup Weedkillers are available in all garden centers

How can I choose the best weedkiller

Weeds come in all shapes and sizes. And so does Roundup, the AU’s best selling weedkiller.

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