Scotts Lawn Builder™ Lawn Thickener

Wear and tear, the weather and your pet pooch can often play havoc with lawns, changing them from broad sweeps of lush green to what may resemble pock-marked playing fields! Regular repairing with Scotts Lawn Builder™ Lawn Thickener quality lawn seed will bring tired lawns back to their full glory.

  • A 2 in 1 mix of lawn seed and slow release lawn starter food makes application easy
  • Grows thick, lush grass with minimal effort
  • Ideal for thickening up any type of lawn including buffalo
  • Developed to survive in virtually every condition
  • Child and pet friendly lawn that can handle the rough and tumble with ease
  • Thickening lawns helps protect against weed invasions
  • Freshness matters - after opening make sure to use the contents within three months

Professional blend

Scotts Lawn Builder™ Lawn Thickener is a blend of grass seeds suitable for thickening up any lawn, including buffalo*

* please note this mix DOES NOT contain buffalo seed - buffalo lawns are only available as instant turf rolls or 'plugs' (seedlings)

Lawn starter fertiliser

Includes Scotts Lawn Builder™ Seed & Turf Starter Slow Release Lawn Fertiliser provides the new grass with nutrients for up to three months

Hard wearing

Once established Scotts Lawn Builder™ Lawn Thickener will provide a beautiful, low maintenance lawn with excellent wear tolerance.


1.4kg box (oversow 50m²)

Suitable for

Oversowing and thickening lawns of all types

Not suitable for

Do not attempt to raise lawn seed in very dense shade - lawn grasses need direct sun for at least part of the day to thrive

How it works

  • Scotts Lawn Builder™ Lawn Thickener works by delivering a blend of lawn seeds and lawn starter fertiliser that is easy to apply and care for during the first few weeks until established

How to use

  1. Closely mow the existing lawn.
  2. Shake the box well before use and apply approximately 2 handfuls (28g) of the product per square metre by moving backwards as you scatter the seed.
  3. Try to ensure the seed is evenly dispersed.
  4. Deeply water the area using a soft spray and keep the area evenly moist for the first 3 weeks.
  5. Do not mow for 3 weeks after application.
  6. When mowing, do not remove more than 1/3 of the growth at any one time.
  7. After 3 months, fertilise the whole lawn with Scotts Lawn Builder™ All Purpose Slow Release Lawn Fertiliser.

For a complete guide on how to use Scotts Lawn Builder™ Lawn Thickener, check the packaging

When to use

  • Best used in early Spring and late Summer - early Autumn - avoid using in extremes of weather (mid Winter and most of Summer)

Safety Information

CAUTION: This product may cause staining of hard surfaces if wet. Avoid contact with hard surfaces and if contact does occur, sweep off immediately.

Technical details

Where to buy it

Decided what product best suits your needs? Or would you prefer to go in-store to ask for more information?

Visit your local Bunnings Warehouse for our largest range.

You can also find Scotts products in a number of gardening, hardware, independent and supermarket retailers including Flower Power, Mitre10, Coles and Woolworths.

Note: Not all brands and products are stocked in all stores. For any additional questions please visit our contact us page.

In New Zealand, go to your local Bunnings warehouse

Tips, tricks & advice

Identify and fix patchy and thinning lawns

Winter, summer, pests, weeds, pets and kids can all damage your lawn, but don’t panic - repair is fast and easy.

Read more

Simple steps to choosing the right lawn grass

Selecting the right lawn for your area and your needs is the key to long term success.

Read more

Other products you might need

Scotts Lawn Builder™ All Purpose Slow Release Lawn Fertiliser


The simplest way to feed ALL established lawns including buffalo and grass alternatives, giving superior results compared to traditional lawn foods

Scotts Lawn Builder™ Starter Slow Release Lawn Fertiliser

LB Starter.jpg

Specially formulated to give new lawns all the nutrients they need to get a good start whether sown from seed or installed 'instant' turf rolls

Scotts Lawn Builder™ Topdress Mix


An organic lawn treatment with added slow release fertiliser designed to rejuvenate, feed and improve lawns to encourage better looking, healthier grass and soil.

Scotts Lawn Builder™ Patch Magic

SCO1268 Patch Magic 3.6L Box_s4-01.jpg

An all-in-one mix of lawn seed, slow release lawn starter fertiliser and unique expanding mulch that makes light work of fixing bare spots in the lawn

Scotts Lawn Builder™ Seed & Feed Sun & Shade


Extremes of weather, everyday foot traffic and extremes of sun or shade can all cause damage to your lawn. Bring it back to life with a seed and fertiliser combo like Scotts Lawn Builder™ Seed & Feed Sun & Shade that does well in sunny and shady areas

Scotts Lawn Builder™ Seed & Feed Couch


A 2 in 1 mix of lawn seed and slow release lawn starter fertiliser that makes light work of fixing bare spots and sowing new lawns. Contains a blend of couch and annual rye grasses