Why New Turf Fails and How to Prevent It

Why New Turf Fails

Nothing transforms a garden faster than new turf. Within a day, a bare patch of soil becomes a green lawn. But too often, the turf fails: it goes brown, gaps appear, weeds invade, and within a year the lawn is worse than before. The good news is that turf failure is almost always preventable. The causes are well-known, and the solutions are straightforward.

In the Chilterns, turf failure is particularly common on chalky soils around High Wycombe, Amersham and Wendover, where the free-draining soil dries out fast. It is also common on clay soils in Aylesbury and Bicester, where the soil compacts easily and prevents root growth. This guide explains why turf fails and how to prevent it.

The 5 Main Causes of Turf Failure

1. Poor Soil Preparation

The most common cause. Turf laid on unprepared soil will not establish. The roots cannot penetrate compacted soil, and the turf sits on top, slowly dying. Proper preparation:

• Dig over the soil to 15cm deep
• Remove weeds, roots and stones
• Add 5cm of compost and dig it in
• Rake to a fine tilth
• Firm gently by walking on heels
• Leave to settle for 1 to 2 weeks

2. Laying on Compacted or Weedy Soil

Turf laid on compacted soil cannot root. Turf laid on weedy soil will be invaded by weeds from below. Always decompact and weed the soil before laying turf. See our soil preparation guide.

3. Not Watering Enough

New turf needs daily watering for the first 2 weeks, then every 2 days for the next 2 weeks. Without enough water, the turf dries out and dies. Water deeply (10 to 15 minutes per square metre) rather than lightly. Test by lifting a corner of the turf: the soil underneath should be damp to 5cm.

4. Walking on It Too Soon

New turf needs 4 weeks without foot traffic. Walking on it before the roots have established damages the turf and prevents rooting. Keep off completely for 3 weeks, then light foot traffic only for week 4.

5. Laying at the Wrong Time

The best time to lay turf is mid-autumn (October to November) or mid-spring (March to April). Avoid laying in summer (too dry) or winter (too cold). Summer-laid turf needs daily watering for months, and winter-laid turf may not root until spring.

How to Lay Turf Properly

1. Prepare the soil as above. This is the most important step.
2. Order turf for delivery the day you want to lay it. Do not let turf sit rolled up for more than 24 hours.
3. Start at one corner and lay the turf in a brick pattern, staggered joints.
4. Lay the turf tightly with no gaps. Press the edges together.
5. Use a board to walk on as you lay, to avoid compacting the soil.
6. Water immediately after laying. Soak the turf thoroughly.
7. Water daily for the first 2 weeks, then every 2 days for the next 2 weeks.
8. Keep off for 3 to 4 weeks.
9. Mow when the grass is 7 to 8cm tall, removing no more than one third of the height.

Signs Your New Turf Is Failing

Catch these signs early and you may be able to save the turf:

• Brown patches: usually lack of water. Water deeply and immediately.
• Gaps between turves: the turf has shrunk from lack of water. Water and fill gaps with topsoil and seed.
• Lifting turf: the turf is not rooting. Press it down and water.
• Yellowing: usually overwatering or poor drainage. Reduce watering.
• Weeds appearing: the soil was not weeded properly. Hand weed and apply a lawn weedkiller in 3 months.

How to Save Failing Turf

1. Water deeply and immediately if the turf is brown.
2. Press down any lifting turf with a board.
3. Fill gaps with topsoil and lawn seed.
4. Feed with a lawn fertiliser after 6 weeks to encourage root growth.
5. Avoid mowing until the turf is well established.
6. Overseed bare patches in spring or autumn if they do not recover.

The Cost of Laying Turf

See our lawn calculator for a CGM Care Level assessment.

Common Mistakes

• Not preparing the soil. Turf on unprepared soil will fail. Always prepare properly.
• Not watering enough. New turf needs daily watering for 2 weeks. Water deeply.
• Walking on it too soon. Keep off for 3 to 4 weeks.
• Laying in summer. Summer-laid turf needs constant watering. Lay in autumn or spring.
• Letting turf sit rolled up. Lay turf within 24 hours of delivery. Rolled up turf heats up and dies.

Frequently Asked Questions

How long does it take for new turf to root?

2 to 4 weeks in good conditions (warm soil, regular watering). In cold or dry weather, it can take 6 to 8 weeks.

When can I mow new turf?

When the grass is 7 to 8cm tall, usually 3 to 4 weeks after laying. Set the mower high and remove no more than one third of the height.

Should I turf or seed?

Turf gives instant results but costs more (5 to 10 pounds per square metre vs 1 to 2 pounds for seed). See our turf vs seed guide.

Get Help Laying New Turf

If you want to lay new turf in Oxfordshire, Buckinghamshire, Berkshire or Bedfordshire, send us a WhatsApp with photos and we will aim to respond within 12 to 36 hours, Monday to Sunday.

Further Reading

• Should you returf or reseed?
• Spring lawn renovation
• Aeration and overseeding

Sources and citations

This article draws on the following sources. Specific claims are cited inline where relevant.

1. CGM field records (2025-01. Site observations from gardens across Oxfordshire, Buckinghamshire, Berkshire and Bedfordshire.
2. Royal Horticultural Society (2024). RHS Gardening Advice and Plant Finder. Available at rhs.org.uk.
3. Met Office (2024). Regional climate averages, South East England. Available at metoffice.gov.uk.
4. British Geological Survey (2024). Soil parent material data for the Chilterns and Thames Valley. Available at bgs.ac.uk.