Here at Mow & Grow we often get these sorts of questions:
This is all down to time and how much work you are prepared to put in and whether you are after perfection or a lower maintenance lawn.
A good rule of thumb is to never cut more than one third of the leaf in any one cut.
If you want your lawn to be kept short (say 25mm) then you must be prepared to cut your grass at least every 5 to 7 days in order to cut no more than 1/3 of the leaf at each mowing. The more regularly you cut the grass, the thicker the lawn will become as new shoots will be produced after each cut. This is at the expense of root development and disease resistance, meaning a lot of other work will be required to keep the turf healthy (watering, feeding etc)
If you are not prepared to cut your grass as frequently you can raise the mowing height so that you only cut 1/3 of the leaf when you come to mow. To have a dense sward you would still need to cut your grass at least every 7 to 10 days though. If you only want to cut the grass fortnightly then you would need to raise the height of cut further to try and stay close to that rule.
Temperatures and rainfall affects the rate of grass growth. You may not need to cut the grass as often at the beginning and end of season or in drought conditions but it’s still important to cut your grass at least every 2 weeks to help stop the spreading of weed seeds and stimulate grass growth.
Whatever height of cut you keep your lawn at, cutting little and often is the key to get a dense and thick turf. This makes a much nicer looking lawn and also helps prevent weeds invading any gaps. If you let your lawn grow long and then infrequently cut it short, you will end up with a thin and patchy lawn that is prone to weeds and moss invading the spaces between.
Read here about how mow and grow can offer local grass cutting service for you at a low cost. We offer free quotation within the Northamptonshire area.