Managing Transit Heat Stress in Turf

Freshly harvested turf is a living product—dynamic, resilient, but sensitive. Especially in warmer months, it can be affected by transit heat stress if not handled promptly. This guide explains what transit heat stress is, how to prevent it, and what steps to take if you think your turf has been affected.

What Is Transit Heat Stress?

When turf is harvested, it undergoes significant stress. Its roots are severed and the rolls are stacked tightly together, which cuts off access to air and light. The grass continues to breathe producing gasses and heat that, if trapped, can cause the turf to deteriorate. The result is heat stress: yellowing, sour-smelling rolls, or even turf that no longer roots effectively after laying.

Turf is hardy—but time is of the essence. If left rolled up too long, especially in heat, it can become severely damaged.

Best Practices to Minimise Risk

To keep your turf in top condition, follow these tips:

Only order when ready to lay. Ensure your ground is fully prepared before turf arrives.
Lay immediately upon delivery. Turf should be installed as soon as possible—especially in warm weather.
Work across multiple pallets. Don’t complete one before starting another. This prevents the rolls lower down from overheating.
Break down pallets. Remove individual rolls from stacks to allow better airflow and reduce trapped heat.
Keep turf cool while working. Store rolls in the shade—but never cover them with plastic or tarpaulins, as this traps heat and moisture.
Water correctly. Once laid, begin watering straight away. Never water turf while it is still rolled.

What to Do If You Suspect Heat Stress

If your turf appears discoloured, warm to the touch, or has an unpleasant odour, it may have suffered from transit heat stress. Here’s what to do:

Report It Promptly

Let us know as soon as you begin laying and suspect an issue.
Early communication is essential—we can better identify root causes and help resolve any concerns.

Take Clear Photos

Capture images of the affected turf before laying and as you lay it.
Email the original photo files so we can verify the date and time they were taken.

Provide Supporting Details

Include:

Time and date of delivery
When laying began
Weather conditions, if known
Any observations or changes in turf appearance

Why Speed Matters

Turf quality can decline rapidly, and delays in reporting limit our ability to help. If we are notified at delivery or shortly after, we can more accurately determine the cause and assist with next steps.

Late reports will be assessed on a case-by-case basis, and we may not be able to verify the cause if environmental conditions have since changed.

How to Reach Us

For prompt assistance:

📧 Email contactus@harrowdenturf.co.uk

When emailing, please attach your photos and include as much information as possible. We’re happy to help, and during office hours, we’ll get back to you swiftly—though we may ask for more detail if needed.

Turf is an investment in your landscape. Treat it with care from the moment it arrives, and it will reward you with a lush, healthy lawn for years to come.