There are a number if variables you need to consider when deciding when and how often you should cut your grass. One of the main things to consider is the weather.
The weather is one of they key variables you must consider when judging how often you should cut your grass. Someone in the South of England is more likely to cut their grass on a more regular basis than someone living in the Scottish Highlands. For grass to grow it needs to be a minimum of 6 degrees Celsius. The rate that the grass grows will vary depending on the temperature. The common misconception is that if the temperature is very hot the grass will grow faster and if the temperature is very cold the grass will grow slower. This is not the case. Grass growth slows down dramatically in very warm climates as well as cold climates, it needs to be just right!
During Winter months you should avoid cutting your grass altogether. You should allow the grass to grow out and remain long until the temperature picks up. This helps insulate the soil protecting it from frost and moss.
During Summer months when it is very hot it is best to let your grass grow out. The grass provides the soil with some shade which prevents the water in the soil from evaporating. This means there is more water in the soil for the grass which helps it survive for longer.
During long periods of hot weather without rain the grass can turn a yellow/orange colour. Most novice gardeners panic and think the grass has died and the first thing they do is throw lots of water on it. This is a big mistake! Watering the grass during extended periods of warm weather can be harmful to the grass as the water can act like a magnifying glass and burn it further.
If your lawn is getting out of control during winter months don’t be afraid to cut it. You just need to cut it during the correct conditions. You should always wait until both the soil and the grass is dry before attempting to cut your lawn. This will prevent damage to your lawn and lawn mower.
How Short Should I Cut My Grass?
When cutting your lawn, you should always follow the 1/3 rule. You should never cut more than 1/3 of the blade of grass in one go. Cutting more than 1/3 of the blade will stress the grass and could turn the grass yellow or brown. This is a clear sign that the lawn has been cut too short.
To achieve the length of grass you desire you may need to adjust the settings on your lawn mower. This may take several attempts over the course of a few weeks to get it to the correct height.
During the months of March through to June you will only need to cut your grass once or twice per month. As the weather warms around July you may even need to cut your grass once or twice a week to keep it at the length you desire.
How Should I Cut New Grass?
Cutting new grass that has been grown from seed is much thinner and weaker than the rest of your lawn. This makes it extremely easy to damage if cut incorrectly. You should always wait until the grass is at least three inches or more in length before you cut it. You won’t need to cut new grass as frequently as the rest of your lawn and you should avoid standing on it where possible.