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Lawn Builder

Scotts Lawn Builder 4kg + Weedkill Slow Release Lawn Fertilser

5 (2)

I/N: 3010060

5 (2)

I/N: 3010060


  • Weedkill contains three selective broadleaf herbicides that will control a broad range of weeds
  • Thickens lawns to prevent further weeds
  • Feeds lawns for up to 3 months
  • Boosted iron and sulphur content promotes deeper green and stronger growth. The thicker the lawn, the less chance weeds have of taking hold - they're smothered before they become obvious and need treatment
  • Huge 250m2 Coverage
Australia's most popular lawn fertiliser has an excellent reputation with home gardeners and professional turf managers alike. The 'set and forget' solution to having a great lawn all year round, this product includes selective herbicides that will kill most broadleaf weeds with exceptions












Easy To Carry

Total Weight 4kg


Model Name
Scotts Lawn Builder 4kg + Weedkill Slow Release Lawn Fertilser
Model Number
Granular Lawn Fertilser
Pest Type
Lawn weeds
Organic (Yes/No)
Concentrate (Yes/No)
Ready to use (Yes/No)

Guides & Documents


We will gladly assist with returns and exchanges of this product in accordance with our returns and exchanges policy.



Weedkill can be safely used on lawns containing common couch, bent (not on bent greens), kikuyu, perennial ryegrass and/or Chewings fescue ONLY


DO NOT USE on buffalo, carpet grass, lippia, dichondra or Santa Ana couch as these grasses and lawn substitutes may be damaged by this product. This includes all named varieties of buffalo - Sir Walter, Palmetto, Sapphire, etc
DO NOT lay new grass or sow patching products within one month of application
Do not apply on or around food plants or animal feed crops
Do not use on new lawns until at least 4 weeks after the first mowing
Do not use if the temperature is expected to exceed 30 degrees C - wait for a cool spell


Weedkill is a slow-release fertiliser that provides continuous nutrition over a three month period while eradicating selected broadleaf weeds
Every granule of Weedkill contains Scotts patented time-release nitrogen
Nutrients are released at about the same rate that grass roots can take up the fertiliser so there is no wastage, run-off to waterways or damaging surge growth


How much will I need?

Weedkill has a recommended application rate of 16g/m2

To work out how much you will need to fertilise your lawn:

Calculate the area of the lawn in square metres (multiply the length by the width)
The area multiplied by the application rate will give the exact amount of Scotts Lawn Builder™ you need
Use a set of scales to weigh it out and then add it to the spreader ready to apply - do not be tempted to add a 'bit extra for luck' because over-application may result in nitrogen burning

How do I apply it?

For best results ALWAYS use a Scotts spreader
Check your model and make sure to set it correctly before you start (settings are also on the back label of the product)
If you don't have a spreader, make sure you distribute the fertiliser evenly over the lawn - uneven applications may result in 'hot spot' burning where too much has landed in one spot
Don't attempt to cover the area in one pass - you may under or over apply. Even coverage may be better obtained by passing over the entire area at least three times, moving at a different angle and applying about one third of the total amount in each pass
Apply to moist foliage. If the lawn is not moist from dew or recent rain, wet the area to be treated
Allow the product to remain undisturbed on the lawn for 24 hours before watering in thoroughly
Rain, watering or heavy foot traffic within 24 hours can knock granules off weeds and may reduce the effectiveness of the weedicides.
Do not mow within 48 hours of applying this product.

IMPORTANT: This product, when wet, will cause iron stains. Be sure to sweep all granules off paths, coping, paving, driveways, shoes, etc immediately after use. Do not allow the granules to come into contact with these surfaces when they are wet.

Store safely out of the reach of children and pets. This product contains iron which can be harmful to dogs' livers if eaten in quantity. It also includes herbicides which may be dangerous.


DO NOT allow granules to come in contact with or drift on to plants you do not want killed, such as shrubs, flower beds and vegetable gardens. Grapevines and tomatoes are particularly sensitive to this product

DO NOT allow containers or granules to get into drains, sewers, streams or ponds

DO NOT feed grass clippings from treated areas to poultry or other animals

This product is harmful to aquatic organisms and very toxic to some plant species (it will kill them)

SAFETY FIRST: Read the instructions on the product packaging before use and take particular note of any warnings or cautions on the label


NPK 20 : 1 : 15

Herbicide active constituents are 2,4-D, mecoprop and dicamba acid

Feeds for 3 months without burning when used as directed and applied at no higher than the rate recommended on the bag

Includes Scotts patented time-release nitrogen and potassium formulated to release nutrients as your lawn needs them

Ratings & Reviews