Repair, soil and wildlife
When and how should you feed a lawn?
Decide whether a lawn needs fertiliser, choose the correct season and avoid scorch or unnecessary runoff.
At a glance
- Rule out non-nutrient problems.
- Choose the correct seasonal product.
- Measure the lawn accurately.
- Calibrate and apply evenly.
- Follow watering, access and storage instructions.
Does the lawn need feed?
A lawn can be pale because roots lack air, soil is dry, mowing is too close or shade is intense. Fertiliser will not correct those causes. Species-rich and wildlife lawns are often deliberately kept less fertile so flowers can compete with grass.
If growth is already strong, extra nitrogen means more mowing and greater risk of soft growth.
Apply accurately
Measure area rather than estimating handfuls. Divide the measured dose and apply half in each direction for more even coverage, or calibrate a spreader away from the lawn. Clean spills immediately according to the label.
Regular stripes of brown or vivid green reveal uneven application. More is not better: excess can scorch plants and pollute water.
Season and safety
Do not use leftover high-nitrogen summer feed in autumn. Apply only in labelled weather and soil conditions, keep people and pets away for the stated period, and store the product securely. For combination weed-and-feed products, confirm current authorisation and follow every pesticide instruction.
Frequently asked questions
Does every lawn need feeding?
No. Many lawns grow well without it, and flower-rich lawns generally benefit from lower fertility.
Why did feeding leave brown stripes?
The product may have been overdosed or distributed unevenly, causing scorch.
Further guidance
For deeper horticultural and safety information, use these authoritative UK sources:
This guide provides general domestic lawn-care information. Product labels, equipment manuals, weather, site conditions and professional advice take priority.