UNDERLAY 4KG NPK 8.4.9

What It Is

UNDERLAY 4KG NPK 8.4.9 is a professional-grade lawn starter fertiliser, formulated to promote rapid turf establishment and long-term grass health. Blending slow-release nutrients with moisture-retaining crystals and beneficial microbes, it's designed to be spread beneath new turf or seeded areas for optimal early growth.

Key Features

• Balanced Nutrient Profile (8-4-9): Provides essential nitrogen, phosphorus, and potassium for vigorous growth, strong roots, and disease resistance.
• Water-Holding Crystals: Help retain moisture in the root zone, reducing watering needs.
• Slow-Release Formula: Feeds your lawn steadily over several weeks.
• Beneficial Microbes: Improve soil health and support nutrient uptake.
• Safe for All Turf Types: Suitable for Buffalo, Couch, Zoysia, and more.

Benefits

• Strong Start for New Turf: Boosts early root development and turf establishment.
• Reduced Watering Needs: Water crystals help conserve moisture during hot or dry periods.
• Low Maintenance: Minimises early weed invasion and reduces the need for frequent fertilising.
• Improves Soil Quality: Microbial action promotes healthier, more fertile soil for sustained growth.

Landscape Ideas

• New Lawn Installations: Lay directly under turf rolls for superior early growth.
• Patch Repairs: Use under lawn seed or patch mixes for quicker recovery.
• Garden Beds & Planters: Add a small amount to potting mix or raised beds to boost nutrient content.

How to Use It

Spread UNDERLAY evenly at 2.5 kg per 100 m² over prepared soil before laying turf or sowing seed. Water thoroughly after application to activate the water crystals and begin nutrient release.

Coverage Example

1 x 4 kg bag covers approximately 160 m².

Delivery and Pickup Options

We make it easy to get UNDERLAY 4KG NPK 8.4.9 for your project:

Pickup: Bring your trailer or ute, and we’ll load it for you on-site.
Delivery: Available across South East Queensland, with clear freight rates displayed during checkout.

Start Your Lawn the Right Way

Whether laying fresh turf or repairing bare spots, UNDERLAY 4KG NPK 8.4.9 gives your grass everything it needs for a strong, healthy start. Order now and lay the foundation for a lush, green lawn.