How often should you mow your lawn in the UK?
In the UK, the ideal mowing frequency changes with the seasons. During the peak growing season from April to September, most lawns need cutting once a week. Fine ornamental lawns may need cutting every 4 to 5 days. From October onwards, reduce to every two weeks as growth slows. In December, January, and February, mowing is rarely needed unless mild weather keeps the grass growing. The key principle is the one-third rule: never remove more than one third of the grass blade length in a single cut. If the lawn has grown tall between cuts, lower the height gradually over two or three mows rather than scalping it in one pass. ELawnCare's most popular plan in Cambridge is fortnightly mowing, which suits 78% of residential customers.
Does grass type affect mowing frequency?
Yes, grass species have different growth rates. Ryegrass, the most common species in UK utility lawns, grows vigorously and needs weekly cutting from April to September. Fine fescues, used in ornamental lawns, grow more slowly and can sometimes stretch to 10 days between cuts. Meadow grass fills in gaps well but tends to clump if left too long. Most UK lawns are a mix of species, so weekly mowing in the growing season is the safest default. If you are unsure what grass type you have, a professional can identify it and recommend the right schedule. Newly seeded lawns should not be mowed until the grass reaches at least 50 millimetres, then cut at the highest mower setting.
What happens if you mow too often or too rarely?
Mowing too often stresses the grass by constantly removing its food-producing leaf tissue. This weakens the root system and makes the lawn more susceptible to drought, disease, and weed invasion. Mowing too rarely allows the grass to grow tall and thin, shading out lower growth and creating a weak, patchy lawn when it is finally cut. The sweet spot for most UK lawns is once a week in the growing season. If you miss a week due to weather or holidays, do not try to compensate by cutting it extra short. Instead, raise the mower height and take off only the top third, then lower it gradually over the next two cuts. This approach, recommended by the RHS, keeps the lawn healthy even after a period of neglect.