Updated: 05 Apr 2026

10 Best lawn fertiliser and weed killers of 2026

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Updated: 05 Apr 2026

#1

Best Choice

BioAdvanced All-in-One Lawn Weed and Crabgrass Killer I, Concentrate, 40 oz

9.6

BioAdvanced

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Main highlights

KILLS TOUGH WEEDS: Control over 200 broadleaf weeds like dandelion, clover, and crabgrass using our powerful weed killer concentrate

DOWN TO THE ROOT: BioAdvanced All-In-One Lawn Weed and Crabgrass Killer I penetrates and removes tough listed weeds down to the root

ALL-IN-ONE FORMULA: BioAdvanced's All-in-One formula kills listed lawn weeds and crabgrass without harming the lawn
#2

Best Value

Roundup Regular 24H Weed Killer Spray, Green (3L) + Lawn Builder Premium Fertiliser (2.5kg)

9.4

Evergreen Garden Care

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Product 2: Scotts Lawn Builder - Premium Slow Release Lawn Fertiliser 2.5kg The latest addition to our well known and proven Scotts Lawn Builder range, Premium will rapidly green your lawn in just a few days, thanks to its soluble nitrogen that is immediately available to grass roots.

Product 1: Evergreen Garden Care Roundup Regular G7.2 24H Weed Killer Spray is general purpose ready to use weed killer. It is conveniently ready mixed, rainproof in 30 minutes and works within 24 hours, non-residual in the soil.
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#3

Brunnings Hose on Feed n Weed 2 Litre

9.3

Brunnings

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For best results apply when weeds are actively growing

Feeds lawns while selectively killing broadleaf weeds including clover, dandelion, dock and more

Absorbed via the leaves and kills weeds over a period of 3 to 4 weeks
#4

Manutec Moss Killer and Lawn Food Fertilizer 2.5 kg

9.1

Manutec

-18%

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Encourages grass to fill bare patches quickly

Controls moss and promotes healthy lawn growth

Combines moss control and lawn feeding in one

-18%
#5

Brunnings Ready to Use Weed Kill for Lawns 1 Litre

8.8

Brunnings

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Non-residual and allows you to replant after 7 days

Kills the entire plant including the roots

Ideal for spot weeding in gardens
#6

Brunnings Organic Fast Action Ready to Use Weed Killer 1 Litre

8.7

Brunnings

-30%

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Visible results within hours of application

Ready-to-use organic formula for convenience

Glyphosate-free and environmentally friendly

-30%
#7

Brunnings Fast Action Ready to Use Path Weed Killer 1 Litre (Pack of 2)

8.6

Brunnings

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Visible results within 1 hour

The information below is per-pack only

Kills weeds, roots and all
#8

Searles Robust Buffalo Lawn Fertaliser, 4kg

8.4

Searles

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Professional grade, controlled release fertiliser designed specifically for buffalo lawns

Lawns provides steady strong growth for up to 14 weeks feeding from date of application

Creates extra thick green lawn, helping to block out weeds
#9

Brunnings Hose on Feed n Weed 3.5 Litre (Pack of 2)

8.2

Brunnings

-29%

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Main highlights

The information below is per-pack only

Feeds lawns while selectively killing broadleaf weeds including clover, dandelion, dock and more

Absorbed via the leaves and kills weeds over a period of 3 to 4 weeks

-29%
#10

Brunnings Fast Action Ready to Use Path Weed Killer 1 Litre

7.9

Brunnings

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Main highlights

Visible results within 1 hour

Non-residual formula

Kills weeds, roots and all