How to grow grass from lawn seed

Before you begin, take some time to choose the best grass seed for your area. Different grass types thrive in different climates, so selecting the right one is crucial for long-term success. If you live in a cooler region, Fescue or Rye varieties are a great option, as they grow well in lower temperatures. For warmer climates, Couch or Kikuyu grass are ideal because they tolerate heat and dry conditions.

Many grass seed blends cater to specific needs. Hardy blends are designed for high-traffic areas, shade blends work best for lawns with limited sunlight, and tough blends provide extra resilience. Checking the seed packaging will help you select the best option for your conditions.

To determine how much grass seed to buy, start by measuring the area in square metres. Measure the length of the space, then measure the width, and multiply these numbers together to get the total square metres (length × width = total area). Once you have this figure, refer to the seed packet for coverage rates. Each lawn seed blend has specific recommendations on how much seed is required per square metre, ensuring you spread the right amount for optimal coverage and growth.

A well-prepared surface is key to successful germination. Start by removing any weeds, rocks, and debris from the area. Then, loosen the soil using a garden fork or rake, breaking up any clumps to create a smooth surface for the seeds to settle into.

If the soil is compacted, a cultivator can help break it up more effectively. You can use a manual or powered cultivator, both of which are great for improving lawn aeration. Once the soil is loosened, use a lawn spreader to level out the surface, ensuring an even base for the grass to grow.

Adding a layer of nutrient-rich soil will help the grass lawn seeds germinate quickly and develop strong roots. Spread the soil evenly across the area to about 2 cm thick. If there are any dips or uneven spots, fill them in to create a level surface, as this will help prevent water from pooling in low areas. A smooth and even lawn will also make mowing easier and ensure that seeds don’t wash away when watered or during heavy rainfall.

Now it’s time to sow the seed. Instead of mixing the seed with the lawn starter, start by spreading the lawn starter evenly across the prepared area. Once this is done, spread the grass seed separately, either by hand or with a seed spreader. To ensure even coverage, sow the seed in two passes—first moving east to west, then north to south.

Water the surface daily until you get a couple of centimetres of growth. Try to keep the top 1cm of soil moist, otherwise your lawn seeds may dry out and die.

Watering is crucial for seed germination. Use a fine mist spray to gently water the area, keeping the soil consistently moist but not overly wet. Overwatering can wash away seeds or lead to waterlogging, which may prevent germination. Depending on the type of grass, germination typically takes between 7 and 21 days.

In the weeks following planting, take extra care to help your new lawn establish itself. Avoid walking on the grass, as foot traffic can damage young seedlings. Once the grass reaches a height of around 5-8 cm, it’s time for the first mow. Trim only a small amount off the top, and never cut more than one-third of the blade height at a time to avoid stressing the grass.

Learn how to service your lawn mower or how to use lawn fertiliser.