Knowing how to care for your new lawn is the difference between a patchy yard and a professional finish. This guide covers every essential step, from the first mow to long-term seasonal health — with expert advice on mowing, fertilising, and pest control to keep your grass healthy and green all year round.
Quick Links to This Lawn Care Guide:
– The First 30 Days: How to Care for Your New Lawn
– 1. Watering Your New Lawn
– 2. Mowing Your New Lawn
– 3. Fertilising Your New Lawn
– 4. Rolling and Weeding Your New Lawn
– 5. Moss Control and Scarifying
– 6. Aerating & Pest Control
– 7. Disease Control
– Expert Video: Covering How to Care for Your New Lawn
The First 30 Days: How to Care for Your New Lawn
The first month is the most critical phase of lawn establishment. Follow this breakdown of essential tasks to give your turf the best possible start.
| Timeline | Critical Task |
|---|---|
| Days 1 – 3 | Watering: Water your new turf immediately. The soil underneath must be moist to a depth of 4 inches. Avoid walking on the grass. |
| Days 4 – 14 | Rooting: Keep the turf damp. Check root growth by gently lifting a corner — if there is resistance, your lawn is rooting well. |
| Day 14+ | First Mow: Once the grass reaches 2 inches high, it is ready for its first cut. Always mow before it exceeds this height. |
| Day 28+ | First Feed: If laid in spring or summer, apply a light fertiliser to support your grass as it transitions to an established lawn. |
Pro-Tip: Never let your turf dry out in the first 14 days. If the edges begin to turn brown or curl, increase your watering frequency immediately.
1. Watering Your New Lawn
The first 14 days are the most critical watering period for any newly laid turf. The soil must remain consistently moist to a depth of 4 inches — never let it dry out completely. Water daily in dry conditions, and check progress by gently lifting a corner of the turf to feel the soil beneath. In Ireland’s climate, rainfall will often do much of the work, but during dry spells in spring and summer you should water morning or evening to minimise evaporation.
2. Mowing: How to Care for Your New Lawn
The turf should have established (i.e. rooted into the ground) within 2 weeks during mild growing weather, providing it has received sufficient watering. It will be slower during winter months due to the lower soil temperature.
Once you are happy that the turf has established sufficiently, and always before the grass reaches two inches high, mowing can commence. Adjust your mower to a high setting so that only the tips of the grass leaves are removed at first. If mowing is too severe it can inhibit establishment of the roots and even kill the grass.
If you have not levelled the site adequately, or if it has settled due to insufficient consolidation, the mowing may leave brown areas where the grass has been cut too short. You should raise the height of the mower for subsequent mowings, and meanwhile correct the levels by rolling lightly and/or top-dress the depressions with soil.
Mowing the Established Lawn
Mowing should be done regularly as required, depending on growing conditions, and at least once per week from spring to autumn. Avoid leaving the lawn unmown for any number of weeks.
If the height of cut is to be reduced, it can be gradually reduced over a number of weeks during the main growing season, but never take more than 25% of the initial height of the grass in one cut, and never mow the grass closer than ½ inch. During the winter, if mild conditions prevail, mow whenever frost is not imminent.
3. Fertilising: How to Care for Your New Lawn
Nitrogen is one of any plant’s essential nutrients for lush leaf development, and it leaches out from topsoil extremely quickly. In a wet climate like Ireland’s, regular replenishment with a suitable fertiliser is essential — every 4–6 weeks during the growing season. Avoid applying nitrogen-rich feed late in autumn or winter, as this can cause soft leaf growth that is easily scorched by frost.
Feeding the Established Lawn
Consistent feeding is the single most important factor in maintaining lawn quality over time. Without regular nutrients, grass plants lose colour, thin out, and struggle to compete with weeds and moss.
All established lawns should be fed in spring at the first real signs of growth, giving the grass a vigorous, healthy start ahead of any germinating weeds. A spring/summer lawn feed — available from most garden centres — should be applied as directed on the product label.
Apply the same feed every 4–6 weeks throughout the growing season, with the final spring/summer application before the end of August. An autumn/winter feed is also essential to maintain lawn health through the colder months.
4. Rolling and Weeding Your New Lawn
Occasionally the lawn will require a light rolling in spring due to “frost lift” during the cold winter months. This should only be done when the surface is dry, as rolling wet ground can cap the surface and impede drainage.
Broad-leaved weeds are inevitable from time to time. If the problem is minor, remove them by hand. For more widespread weed issues, a selective broad-leaf weed killer for lawns is available from any garden centre.
Coarse grass weeds should be removed by hand as soon as they appear — left unchecked, they can spread quickly and cause an unsightly problem.
5. Moss Control and Scarifying
Moss only takes hold when grass is too weak to compete — usually caused by waterlogged soil, mowing too closely, or inadequate feeding. Various chemical treatments are available from garden centres for short-term control.
Periodically, the brown fibrous “thatch” layer should be removed using a spring-tined rake or a mechanical scarifier. Carry out this work when the grass is actively growing and your lawn will recover and look noticeably healthier within 2–3 weeks.
6. Aerating and Pest Control
A garden fork or mechanical lawn spiker will relieve soil compaction, improve surface drainage, and allow more air to reach grass roots. This is best carried out in late summer.
Worm casts, grubs, or slugs can damage newly laid turf. Identify the pest first, then apply a suitable treatment obtained from your local garden centre, following the product label instructions.
7. Disease Control
Two lawn diseases are most common in Ireland:
Red Thread creates bleached or pinkish patches and is usually linked to low soil fertility. In most cases, a proper lawn feed applied before the end of August will correct the problem.
Fusarium Patch causes leaf blades to collapse, leaving yellowish-brown patches — often the result of applying a spring/summer feed too late in the year. If this occurs, a suitable fungicide is available from your local garden centre.
Small brown toadstools sometimes appear during the first year after laying. These are harmless to the lawn and will naturally die off in a short time.
Expert Video: How to Care for Your New Lawn
At Emerald Lawns, we take pride in growing high-quality turf — but the secret to a perfect lawn lies in how it is installed and cared for once it reaches your garden. We teamed up with Robbie Lynn from Premier Lawns, an experienced lawn care specialist, to create a definitive video guide on new lawn care best practice.
In this demonstration, Robbie walks through the professional “Golden Rules” and industry-standard techniques required to achieve a seamless, healthy finish. Watch how to get the best from your fresh grass turf rolls here. You can also watch the video on the Premier Lawns YouTube Channel.
Summary: How to Care for Your New Lawn
Follow the steps in this guide and your new lawn will have the best possible foundation for long-term health. From the critical first 14 days of watering and rooting, through to seasonal mowing, feeding, and pest control — consistent care is what separates a great lawn from a struggling one. If you have any questions during the establishment phase, get in touch with the Emerald Lawns team or refer back to the expert video above.