New Turf Died After Laying

What's happening?

New turf lives on its own moisture for a few days and then has to grow roots into the soil below or die. Almost every failure is one of those two halves going wrong: the turf dried out before it rooted, or it had nothing worth rooting into. Turf laid on compacted ground, on a thin skim of topsoil over builders' subsoil, or on soil that was never broken up sits like a carpet: roots hit the hard layer, stop, and the turf dries out from below however much you water the top. Shrinkage gaps at the joints and edges that curl are the visible sign that the sheets are drying and contracting rather than knitting together. Brown turf in high summer is often dormant rather than dead, which is why the pull test matters more than the colour.

What usually causes it?

• Not enough water in the first few weeks, particularly in warm or windy weather when a lawn can need a soaking every day
• Turf laid on compacted ground or a subsoil pan, so roots cannot penetrate below the sheet
• Too little topsoil under the turf: a thin skim over builders' rubble or subsoil holds almost no moisture
• The bed not raked, firmed and levelled, leaving air pockets under the sheets that the roots cannot bridge
• Turf left stacked on the pallet too long before laying, so it had already begun to heat and yellow, or joints not butted tightly so the edges dried out and shrank apart
• Laid in the wrong conditions: onto frozen or waterlogged ground, or in the middle of a heatwave without irrigation
• Walked on or mown too early, tearing the new roots before they had anchored

Is it dangerous?

No. This is a cost and appearance problem, not a safety one. The only thing worth watching is the temptation to treat brown turf with a weedkiller or a high-nitrogen feed to force it green: feeding turf that has not rooted stresses it further, and residues can hamper re-seeding later.

Can I fix it myself?

Do the pull test first. Lift a corner of a sheet: if white roots have grown into the soil below, the turf has taken and brown colour is likely to be drought dormancy that will recover with watering. If it lifts cleanly like a mat with roots still confined inside the turf, it has not rooted and watering alone will not save it. Then dig a small hole through the turf and the soil beneath and look at what is under it: depth of topsoil, and whether the layer below is loose or brick-hard. That single hole usually tells you whether this was a watering failure you can still recover, or a ground preparation failure that needs the turf taken up.

When should you call a landscaper?

Call a landscaper if the turf lifts without roots, if there is less than a spade's depth of decent topsoil under it, or if the ground under the sheets is compacted. Those are ground preparation faults and re-turfing over the same base gives the same result. Also call where the lawn is part of a new-build garden and the turf was laid over construction ground: that is a common and fixable combination, but it needs the base opened up.

What will the landscaper actually do?

• Check rooting and dig through to assess topsoil depth and the condition of the layer beneath
• Lift the failed turf and break up the compacted subsoil rather than laying fresh turf over it
• Import and grade topsoil to a workable depth, then rake, firm and level the bed properly
• Correct falls so the new lawn drains and does not sit wet at one end
• Lay fresh turf with tight butted joints, brushing a light dressing into the seams
• Set out a watering regime for the first weeks and advise when the lawn can first take traffic and a high first cut

Who fixes this

• Turfing and lawn laying

Questions people ask

Sources & References

1. RHS: Lawns from turf
2. RHS: Lawns
3. RHS: Soil types