How to Prepare and Sow Turf Seed: A Step-by-Step Guide for Australian Lawns

Getting a new lawn established from seed is one of the most rewarding things you can do for your property — but it's also one of the most common areas where people go wrong. The difference between a patchy, struggling lawn and a thick, even result almost always comes down to preparation and sowing technique. Follow this guide and you'll give your turf seed the best possible start.

Step 1: Choose the Right Grass for Your Conditions

Before anything else, you need to pick the right variety for your conditions. Australian lawns broadly fall into two categories:

Warm Season Grasses

Warm season grasses thrive in heat and are grown successfully right across Australia. They go dormant (brown off) in cooler winters but bounce back vigorously in spring. They germinate best when soil temperatures are consistently above 18°C, making late spring through summer the ideal sowing window.

• Kikuyu Seed Mix 5kg — One of Australia's most popular lawn grasses. Fast-growing, hard-wearing, and highly drought-tolerant once established. Ideal for high-traffic family lawns and large areas. Also available as Pure Kikuyu Seed 1kg for smaller jobs or overseeding.
• Dominator Couch Grass™ — OzGrass's own trademarked couch variety. A premium, high-performance couch grass delivering exceptional density, colour, and wear tolerance. Fine-leaf and fast-establishing, Dominator Couch Grass is built for Australian conditions — from home lawns through to sports fields and commercial turf applications. 

Cool Season Grasses

Cool season grasses stay green year-round and perform best when sown in autumn (March to May) or early spring. They germinate best at soil temperatures between 10–18°C, making them the preferred choice where winters are cold and summers are mild.

• All Seasons Sunny Blend — RTF Tall Fescue & Perennial Ryegrass Mix — Our most popular cool season blend. RTF (Rhizomatous Tall Fescue) is a self-repairing variety that spreads via underground rhizomes, making it exceptionally wear-tolerant and drought-hardy. Combined with Perennial Ryegrass for fast establishment and fine texture — a premium all-rounder for home lawns and high-traffic areas.
• Shady Blend Lawn Seed Mix — Formulated for lawns receiving less than 4 hours of direct sun per day. A blend of fine-leaf fescues and shade-tolerant ryegrass varieties that perform where other grasses struggle.
• Lawn Seed Mix — A versatile, reliable blend suited to a wide range of conditions. Available in 5kg and 15kg bags for new lawns and overseeding.
• RTF Tall Fescue 5kg — Pure RTF for maximum wear tolerance and self-repair capability. Also available as an RTF & Kentucky Bluegrass Blend for a finer finish.

Step 2: Prepare the Soil

Good soil preparation is the single most important factor in successful turf establishment. Don't skip this step.

• Clear the area — remove all existing weeds, grass, rocks, and debris. For large areas, a non-selective herbicide applied 2–3 weeks before sowing is the most effective approach.
• Cultivate the soil — rotary hoe or till to a depth of 100–150mm to break up compaction and create a loose seedbed.
• Level and grade — rake to a smooth, even finish sloping away from structures at around 1–2% for good drainage.
• Improve soil if needed — sandy soils benefit from organic matter or quality lawn underlay. Clay soils may need gypsum to improve structure and drainage.
• Firm the seedbed — lightly roll or tamp so the surface is firm but not compacted. Your footprint should leave only a shallow impression.

Step 3: Apply a Pre-Sowing Fertiliser

Apply a starter fertiliser high in phosphorus to encourage strong root development. Rake it lightly into the top 20–30mm of soil. Avoid high-nitrogen fertilisers at this stage — they promote leaf growth at the expense of roots and can burn seedlings.

Step 4: Sow the Seed

• Check the sowing rate — always follow the recommended rate on your seed packaging.
• Use a spreader — for areas larger than 50m², split your seed into two equal lots and sow in perpendicular directions for the most even result.
• Rake lightly — rake seed into the top 5–10mm of soil. Most varieties need light to germinate — don't bury them deeply.
• Roll after sowing — ensures good seed-to-soil contact, which is critical for germination.

Step 5: Water Correctly

• Water immediately after sowing — use a fine mist to avoid washing seed away.
• Keep the seedbed moist — the top 20–30mm of soil must stay consistently moist throughout germination (typically 7–21 days depending on species and conditions).
• Never let it dry out — the most common cause of failure. A dry seedbed during germination will kill emerging seedlings quickly.
• Reduce frequency as seedlings establish — once seedlings reach 20–30mm, transition to deeper, less frequent watering to encourage deep root development.

Step 6: First Mow

Wait until your new lawn reaches at least 50–60mm before the first cut, and never remove more than one-third of the leaf blade in a single mow. Use a sharp mower blade to avoid pulling seedlings from the ground.

Common Mistakes to Avoid

• Choosing the wrong grass variety for your conditions
• Sowing at the wrong time of year
• Skipping soil cultivation and sowing into hard, compacted ground
• Uneven seed distribution leading to patchy results
• Allowing the seedbed to dry out during germination
• Mowing too early or cutting too short on the first mow

Ready to Get Started?

OzGrass stocks premium turf seed for every Australian climate — warm season Kikuyu and Dominator Couch Grass™ through to cool season Fescue and Ryegrass blends. Fast delivery Australia-wide.

Shop Turf Seed at OzGrass →